[ CHEERS AND APPLAUSE ] ♪ I'LL LET YOU COME OVER HERE, THESE ARE YOUR THINGS. YOU COME UP WITH THESE IDEAS ON YOUR OWN? >> FOR THE MOST PART, YEAH. >> YOU SPEND A LOT OF TIME THINKING ABOUT IT? >> THIS IS ALL I DO IN MY FREE TIME. >> IT SEEMS YOU REALLY WASTED YOUR DEGREE, WHAT IS YOUR DEGREE IN? >> MECHANICAL ENGINEERING. >> >> Jimmy: YOUR FOLKS ARE PROBABLY REAL EXCITED. REAL PROUD. >> Jimmy: YOU GOT YOUR MECHANICAL ENGINEERING DEGREE, NOW HERE YOU ARE. >> THE IDEA IS APRIL FOOLS DAY PRANKS YOU CAN USE WITH JUNK AROUND YOUR HOUSE. >> Jimmy: THERE ARE PRANKS AND SOME ARE VERY COMPLICATED, THESE ARE NOT. >> START SIMPLE AND GET MORE COMPLEX. THIS ONE IS EASY TO DO AROUND THE OFFICE. YOU KNOW THE ANTI-BACTERIAL HAND SOAP. >> Jimmy: I'VE HEARD OF IT. >> PUT IT ON YOUR HAND, RUB ITTING TO, IT EVAPORATES. REPLACE IT WITH EXTRA-STRENGTH HOLD HAIR GEL. >> Jimmy: EMPTY IT OUT? >> AND PUT IT IN, YOU CAN'T REALLY TELL. >> Jimmy: THEN WHAT HAPPENS? >> GO AHEAD. >> Jimmy: OKAY, YEAH, I WANT TO KEEP MY HANDS CLEAN. >> YEAH. AND THEY'RE LIKE FUSED TOGETHER. >> Jimmy: YEAH, IT'S NEVER COMING OFF IS REALLY WHAT'S HAPPENING. [ LAUGHTER ] AND THE PRANK IS THAT EVERYONE IN THE FAMILY GETS THE FLU? [ LAUGHTER ] HOLD ON A SECOND, I'VE GOT TO GET THIS STUFF OFF. >> SURE. >> Jimmy: EXCUSE ME FOR ONE -- [ LAUGHTER ] [ CHEERS AND APPLAUSE ] >> Jimmy: ALL RIGHT, THAT'S SIMPLE, THAT'S GOOD. >> WE'RE GOING TO UP OUR GAME. A LITTLE MORE COMPLEX. TAKING A WATER BALLOON FILLER-UPPER THINS AND ORANGE JULES -- >> Jimmy: WHERE DO YOU GET THOSE? >> ANY STORE, THEY'RE PRETTY COMMON. POUR IT INTO HERE. TAKE A BALLOON, LOAD IT HERE. PUT ON IT THE NOZZLE. THEN THIS IS PRESSURIZED. WE'VE CUT A WINDOW SO YOU CAN SEE WHAT'S GOING ON HERE. WHEN I PUSH THIS, WHAT'S HAPPENING IS IT'S TAKING ORANGE JUICE FROM HERE, FILLING UP THAT BALLOON. >> Jimmy: YOU'RE PUTTING IT IN A BLADDER. >> THAT'S RIGHT. A BLADDER. AS IT WERE. >> Jimmy: ALL RIGHT. >> ONCE IT'S LIKE SUFFICIENTLY FILLED, THEN YOU'RE GOING TO GO AHEAD AND TAKE IT OFF THIS NOZZLE AND FOLD IT OVER SORT OF THE NOZZLE ON THE CONTAINER. >> OKAY. >> PUT THE CAP ON REAL QUICK. THEN WHEN YOUR MOM AND DAD COME DOWNSTAIRS TO GET LIKE ORANGE JUICE IN THE MORNING, RIGHT? >> Jimmy: UH-HUH. >> THIS HAPPENS. OH! [ CHEERS AND APPLAUSE ] >> Jimmy: HEY, THAT'S GOOD. >> THEY'LL THINK IT'S HILARIOUS. >> Jimmy: OH, YEAH. >> THEY'LL THINK IT'S REALLY FUNNY. >> Jimmy: MY DAD WOULD ABSOLUTELY BEAT THE CRAP OUT OF ME IF I HAD DONE THAT. [ LAUGHTER ] DOES IT WORK WITH MILL TOOK? OR JUST ORANGE JUICE? >> BEVERAGE OF CHOICE. >> Jimmy: WHEN DID. >> YOU LIVE ALONE, COULD YOU DO THIS TO YOURSELF? >> YOU COULD BUT THAT'S PRETTY SAD. >> Jimmy: WE'RE STARTING A LITTLE MORE COMPLICATED, STILL PRETTY SIMPLE. >> YEAH, THIS IS MAYBE OUR MOST DANGEROUS. GOING TO TAKE SOME KIND OF CONTAINER LIKE THIS. WHAT YOU DO IS YOU LIKE PEEL OFF THE LABEL. >> Jimmy: OKAY. >> THEN CUT A SLIT IN IT THEN TAKE A PHONE OF YOUR FAVORITE LOVED ONE AND JUST KIND OF STICK IT IN THERE. LIKE SO. AND THEN -- >> Jimmy: REPLACE THE LABEL. REPLACE THE LABEL. IT'S A MODERN-DAY SHIP IN THE BOTTLE KIND OF THING. NOW WHAT YOU CAN DO IS SET ON IT THE COUNTER AND CALL THEM OR MAYBE USE THIS AS THEIR ALARM CLOCK. BASICALLY GET THEIR REACTION. >> Jimmy: YOU DID THIS? >> AS A MAN OF SCIENCE I WANTED TO TEST THIS, YEAH. I TESTED IT ON SOME PEOPLE. >> Jimmy: FIRST TEST IS SOMEBODY SLEEPING AND THE THING GOES OFF. HE'S THROWING HIS OWN PHONE. WHO'S THIS? >> THIS IS MY AUNT PAM. >> WHAT THE HELL IS THIS? HOW MY GOING TO GET -- HOW DID MY PHONE GET IN HERE? [ BLEEP ]. >> Jimmy: AUNT PAM. [ APPLAUSE ] LET ME ASK YOU THIS, WHAT IF YOU DON'T HAVE AN AUNT PAM? CAN YOU STILL DO IT? >> YOU STILL COULD. BUT THE REACTION WILL BE BEST IF YOU HAVE MY AUNT PAM. >> Jimmy: YOUR AUNT PAM. >> THAT'S THE TIP OF THE ICEBERG. >> Jimmy: MY AUNT CHIPPY WOULD BE GOOD WITH THAT TOO BUT SHE DOESN'T KNOW HOW TO USE A PHONE. I HAVE ONE OF THESE AT MY HOUSERY I'VE BEEN WANTING ACTUALLY TO DO SOMETHING WITH THIS. YOU HAVE A GREAT IDEA. YOU'VE COME UP WITH AN ANGLE THAT I DID NOT KNOW EXISTED. >> THIS IS -- I FEEL LIKE THIS IS SORT OF A LATE-NIGHT TELEVISION FIRST. HERE WE TOLD THEM ABOUT PRANKS BUT WE'RE ABOUT TO DO ONE REALTIME. THIS IS THE AMAZON ECHO. ALLEGEDLY THEY SOLD LIKE 10 MILLION, THEY'RE ALL OVER THE PLACE. FOR THOSE WHO DON'T KNOW, IT'S A VOICE-CONTROLLED PERSONAL ASSISTANT. >> Jimmy: YES. >> IT WORKS REALLY WELL BUT THE THING IS, IT WORKS FOR ANYONE IN THE FAMILY FOR THEIR VOICES, INCLUDING MY VOICE, INCLUDING IF I'M GOING THROUGH THE TV. SO WHAT I'M ABOUT TO DO IS WE'RE GOING TO PICK A REALLY ANNOYING SONG. AND WE'RE GOING TO HAVE HER PLAY IT. AND SO THEN THIS WILL PLAY IN MILLIONS OF HOMES. >> Jimmy: DO IT QUICK SO THEY DON'T HAVE TIME TO HIT THE REMOTE. >> THAT'S RIGHT. SO LIKE BASICALLY, WE'RE GOING TO -- BEFORE WE DO THAT, THE CATCH IS WE'RE GOING TO TURN IT UP TO MAX VOLUME. FOR TWO REASONS. ONE, IF THERE'S SOMEONE AT HOME WHO'S LIKE FALLEN ASLEEP WATCHING THE NEWS BEFORE YOUR SHOW, THEY'RE ABOUT TO GET WOKEN UP AND BE REALLY CONFUSED. THE SECOND REASON WE TURN IT TO MAX VOLUME WHEN IS IT'S PLAYING REALLY LOUD AND SHE'S CRANKING OUT THE MUSIC, SHE CAN'T HEAR YOU TO TELL YOU TO STOP. NORMALLY YOU CAN TELL HER TO STOP FROM ACROSS THE ROOM BUT SHE WON'T BE ABLE TO. >> Jimmy: SHOW ME. >> ALEXA, VOLUME 10. ALEXA, PLAY "WHO LET THE DOGS OUT." >> PLAYING "WHO LET THE DOGS OUT." ♪ WHO LET THE DOGS OUT WHO WHO ♪ [ CHEERS AND APPLAUSE ] ♪ WHO LET THE DOGS OUT WHO WHO ♪ >> ALEXA, STOP. ALEXA, STOP. ALEXA, STOP. ALEXA! STOP! ALEXA, STOP. >> Jimmy: HOW DO YOU GET ALEXA TO STOP? >> I DON'T KNOW. SHUT UP, ALEXA! >> Jimmy: I HAVE A PRANK I WANT TO PLAY, I THOUGHT OF A GOOD ONE. WE CAN'T GET THIS -- >> I GOT IT. >> Jimmy: HERE WE GO. ALEXA, ORDER A POOL NOODLE. >> THE TOP SEARCH RESULT FOR POOL NOODLE IS STANDARD SWIM NOODLES, 35-PACK. IT'S $50, TOTAL INCLUDING TAX. >> Jimmy: 35-PACK, YEAH. >> WOULD YOU LIKE TO BUY IT? >> Jimmy: YES, 10 OF THOSE. >> YOUR TOTAL FOR 10 UNITS IS $500 INCLUDING TAX. WOULD YOU LIKE TO BUY IT? >> Jimmy: YES. >> OKAY. >> Jimmy: MY HOPE IS THAT SOMEBODY FELL ASLEEP AND DOESN'T REALIZE WHAT JUST HAPPENED, AND LIKE ON WEDNESDAY OF NEXT WEEK THEY GET -- [ LAUGHTER ] [ CHEERS AND APPLAUSE ] >> Jimmy: ONE MORE. THIS IS ONE YOU CANNOT DO AT HOME. THIS IS AMAZING. >> THAT'S RIGHT. FOR THIS LAST ONE, ALL YOU'RE GOING TO NEED IS A DARTBOARD, SIX STEPPER MOTORS, A VICON MOTION CONTROL SYSTEM, A MASTER'S IN MECHANICAL ENGINEERING. YOU WERE MAKING FUN BUT LOOK AT THIS. >> Jimmy: I STAND CORRECTED. >> OKAY. SO WHAT YOU'RE GOING TO DO IS GIVE THIS DART TO YOUR BUDDY. YOU'RE GOING TO CHALLENGE HIM JUST TO LIKE HIT THE BOARD. >> Jimmy: JUST TRY TO HIT THE BOARD, OKAY, ALL RIGHT. >> HEY, HOT SHOT. DOUBLE OR NOTHING? >> Jimmy: YEAH, YEAH, ALL RIGHT, READY? LAUGH LIVE. >> ALL RIGHT. SO I STEP UP HERE. >> Jimmy: IT DOES THIS AUTOMATICALLY? >> THAT'S RIGHT. >> Jimmy: YOU BUILT THIS? >> THAT'S RIGHT. I STEP UP. HERE WE 2. GO. [ CHEERS AND APPLAUSE ] >> Jimmy: UNBELIEVABLE. AND THIS IS SIMPLE TO BUILD? >> YEAH. >> Jimmy: YEAH, THIS IS GREAT. WOW, THANK YOU VERY MUCH, MARK ROBER, EVERYBODY!