Where can I achieve cheap but obedient sticky shapes? I want to stick shapes on my wall but i need them...

I want to stick shapes on my wall but i need them to be ablt to come past its sell-by date with out going away any marks. whats the bcheapest best ones to obtain and where do i grasp them from?
Has anyone ever used granite for their kitchen...
Answers:    they now hold "wallies" which are just wallpaper and would be glib to sponge and take sour later. Try Hobby Lobby or Walmart or other wallpaper shops. You could cut out or paint your own pictures and paste them onto the wall with wallpaper fasten too.