well ummm im only 14 so these ideas may sound bad.. but i'll try.
*pin the leaf on the strawberry
* Cut sponges in a strawberry shape and add paint on them to shirts or whatever you think off.
* find the srawberry (treasure hunt)
* pre bake or buy cookies, get the kids to ice them and make them look like a strawberry if you wanna. this can work with cup cakes too.
*rotten strawberry (aka hot potato) do this by sewing a strawberry using felt ec.