shop-counting game

M. is doing well with her couting but doesn't like to use the Montessori materials these days. I thought to let her doing other things until the interest is coming back, but a couple of months have passed by and she doesn't want to know about them. All well. working on mathematical and language materials, but There is so much more about Montessori, like creativity, the use of senses, contact with nature, all aspect that I see are missing....
I had to come up with some other ways to make M. like counting....
I devise this shop, where in the price tags are as maI Ppny circles as the coins needed to buy the item. M. likes pretend play and she starts following the rules during board games, so this would be a great way to play counting!
I kept it simple, putting the more expensive items at 5 coins. She did very well, and then she also had a change to be the shopping assistence, checking that I was giving her the right number of coins.