Getting them outside on the grass during the day is a better idea. I put mine out as soon as the first week if it's warm enough. A bucket placed on its side will heat up in the sun and works as a brooder. Provide feed, water and shade. You can also provide a dish of clean sand, or a clump of clean sod from your yard, dirt included in your brooder. Roosts too can keep them busy and build leg strength. Chicks don't really play with toys.