A simple adaptation to a pen/pencil/paint brush that can allow an individual with arthritis and/or limited ROM of their hands to write and/or paint. I don't have arthritis, but I loved the idea for some of my friends.
Use refrigerated sugar cookie dough. Roll out the dough, place your chocolate on the dough and marshmallows then place another piece of dough over the top and "crimp" the edges. Add a sucker stick if you want. Bake using cookie dough instructions.