First off, SO CUTE!!!! I love it!!!
It normally works to fix it in th position you want and then put it into boiling water for a few seconds and then rinse it under running water so it gets set..well it works with barbie.
That's what I do to make toothbush bracelets...put a half inch or so of water in a frying pan big enough to let the item lay flat, then turn the heat on high and heat until right before boiling (when all the little bubbles start to form) and leave the item in the water for a few minutes, until it's soft enough to form (watch out, it's hot!). Then just form it around whatever you want it shaped like (for bracelets I used a katsup bottle or taped a paper towel to my wrist to form in on that. Then run it under cold water, still on the form. And Voila! You've got a personally-shaped bracelet! I hope this is clear enough! Good luck!!