Brooding

I'm eleven and home schooled and we've got eight bantams. We recently adopted two roosters so we could have some of our hens mate with them. We finally saw the easter egger rooster mounting our easter egger hen. After we had went away for the weekend we came back and there were four blue eggs of hers. We started to incubate them, but the thought of having our hen hatch them was too tempting. Does anyone know if you can MAKE a hen go broody? And if there are any less forceful ways that are less hard on the hen?