This is a normal tray form the likes of Del Taco or Carl's Jr. These are the least expensive trays as you can steal them from any fast food restaurant. Great to use but don't last very long.
More examples of cheap and easily accessed trays.
Round trays are fun to use also and easy to stand on. but i don't recommend the cork bottomed ones as they will not move.
Metal trays are the best. They spark, make lots of noise and last for a really long time. I think these are the best to use but you can easily get in trouble for it due to the noise. Expensive but will last a long time. I don't recommend stealing like your moms good silver tray though cause its probably not worth the trouble.