As found recently on GameFAQs, this cheat/exploit will allow Maxwell to complete any and all action levels in Scribblenauts with ease:

Just type in “handcuffs,” attach them to the Starite, place a “vending machine” nearby, drag the opposite end of the handcuffs to the vending machine and choose “fill,” then move the machine down to Maxwell and empty its contents.

Here’s a video too:

Granted, I might use this trick once or twice if I find myself stuck on a really frustrating level, such as the ones in Stunt Park or Shoreline, but no way would I use this all the way through. What would be the point of that?