I couldn't wait to try this and we don't have a Michaels here. I did go to the local craft store and they had some candy molds and I bought those to try. They were ok but the butterflies were flat instead of 3-D. Here is what I came up with because I couldn't wait for the molds to get back in stock:
I had a disposable roasting pan lid left over from lasagna I made for the school teachers. Eureka!!!!! That's plastic. That's obviously food safe because they sell it for food. Hmmmmmm I wonder.....
So I cut the flat portion of the plastic into strips about 3 or 4 inches wide and about 12 inches long.
I then took one strip of the plastic and creased it lengthwise on the corner of the counter to give it a "V" shape lengthwise. I then painted the gelatin on the inside of the "V" and waited about 5 or 6 hours until it dried. I popped it right off and cut out some butterfly shapes with my kitchen scissors. I painted them with gel colors mixed with water (next time I will mix into the gel before drying because they tend to melt a bit when you put water on them) and dusted on some of that purple Wilton sparkle dust stuff. I used some fondant to make little bodies for them and voila! Butterflies!
These aren't nearly as pretty as the ones I could probably get with the molds so I intend to order them ASAP. I know there are a lot of people like me that can't wait to try this though so maybe you could all play with this.
I do want to say that I was surprised with how hard the gelatin dries. It could easily stand up on its own and hold its shape. I am anxious to try painting some on the side of a 2-liter soda bottle and trying to make a rainbow to stand up on a cake like an arch. I am also thinking of trying a few flat ones to write on (Happy Birthday, etc) and use as a stand up topper for cakes I don't want to write directly on. It seems to me that there are a thousand ways you could use this technique and I thank you guys for introducing me to it! Happy baking!