Objects I abuse in Scribblenauts
5. Pterodactyl - Big enough to move heavy objects but small enough to fit in most levels. Plus it can fly and it's friendly.
4. Rope- Almost always used in conjunction with a pterodactyl to move objects.
3. Net- the only thing that I can think of that will stay put but also catch and hold things.
2. Jetpack- Kinda obvious. It's a jetpack. It'd be super useful in real life too.
1. Grappling hook- I'm too lazy to jump over pits or go around things so I use this tool on almost every starite or other object I need to catch.