The hard glass screen of my itouch cracked, any ideas on how/where i can buy a new screen?

so i accidentally stepped on my itouch and i hace a spider shaped crack in the glass... i need it to be replaced because it is right in the middle, do you know where i could get it fixed or if i can just buy a glass screen and put it in my self??? or what will happen if i take the glass off?? will it just be a gel... show more so i accidentally stepped on my itouch and i hace a spider shaped crack in the glass... i need it to be replaced because it is right in the middle, do you know where i could get it fixed or if i can just buy a glass screen and put it in my self??? or what will happen if i take the glass off?? will it just be a gel and will i still be able to use it??
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