How do i make this dog toy?

I saw a toy in a shop a few years ago and deeply regret not buying I've looked everywhere ebay etc. Can't find the nice version I saw of it so it was basically a toy and ur dog steps on a bit of it and it opens and then there r lots of those and u put a toy in 1 and see if he can work it out another 1 is its 3 parts of a star and he has to twist the parts away with his snout to get the treat...any way I can make either of these toys???even partrs would be great!