plastic tubs are the best! Drill holes to tie a 'rabbit' water bottle in one corner (with stout twistie ties or wire), add playground sand for a slip proof floor, a few pieces of driftwood to climb on (salt soaked wood holds heat better), a chick feeder, a brooder lamp with a 125 watt bulb and you're set!
Mine is covered with a door from a dog crate, and works nicely. The lamp is hung from its clamp by a chain so I can move it up & down easily. Smear yougurt (plain or mixed with egg or chick starter) on the walls if they look bored (or if you need even more entertainment!)
I bought a ceramic heat emitter, 100 watt, and it wasn't quite warm enough, so the older chick has it. Those come in many wattages, get 125 if you can. They were spendy, on line they were all $37.50, at the store they went up with wattage.
I dump the sand out once a week & the layers come dig out the food the babies missed. If it got moldy under the waterer it went in the compost. There is a post here about chicks dying from mold under the waterer, so keep it clean & dry. That can happen in any container.
Enjoy those chicks!