1. Elephant Toothpaste

Mark features his biggest, most visual experiments ever, and highlights his rela... More

2. Yes, I'm the Glitter Bomb Guy

Mark details the origin -- and future -- of his glitter bomb justice.

3. Attack of the Squirrels

In his quest to understand terminal velocity, Mark studies some furry friends be... More

4. Swimming in Orbeez

Mark dives into pools filled with 25-million Orbeez, liquid sand and jello.

5. Super-Sized Toys

Mark unleashes some of the most absurdly scaled-up toys he's ever made.

6. Turbo Sports

Mark's field-goal kicking robot enters a contest with smashing results!