Can a iphone 4 case fit an ipod touch 4?

Before you say No.read this so what if you buy a silicone case for ipod touch 4 put it on then get an iphone 4 case and put it on with the silicone ipod touch 4 case will it still fit?

Added (1). Both the cases would be silicone btw. I'm very serious about this.

Added (2). The reason I ask is because on amazon its much cheaper to get iphone cases especially for iphone 4 or 4s than getting ipod touch 4g like the good looking ones.

Are you serious?

No, With both cases on, the Touch would be too thick to fit.