Then last week I stumbled on the art of Paul Villinski, who turns old Beer cans into beautiful works of art by making them into butterflies and birds. I had to try it and whilst my efforts aren't a shade on Villinski's, I found it to be a surprisingly simple process and one that can be done with household materials, and with no specialist knowledge. Although there are some great Instructables on here for making butterfly charms and ornaments or reusing drink cans, none that I can see are similar to this one.
As with all my Instuctables I have probably over done it with the photos and descriptions, and have made a few mistakes during the process, nothing serious and I will point them out as we go.
I find the process quite addictive which is handy as I intend to make a lot of these and use them to create wall art in a way similar to Villinski's, you could also turn them into fridge magnets or perhaps stick them to hair clips.
I hope you both enjoy, and find this Instructable useful.
Edit: Only after publishing did I see bauble's Drink Can Craft instructable http://www.instructables.com/id/Aluminium-Drink-Can-Craft it also features making butterflies and has some other great ideas for things to do with cans, do check it out.
Update: Following a suggestion by scraptopower, I went back and investigated the use of a can opener to remove the top of the can, I had tried this before but obviously with the wrong type of opener. It actually works quite well although it does pose some issues, I have added this alternative method to the cutting the can step, so you can choose which you prefer.
Update 2: Again I have made some changes to the cutting the can step to include weibbed's method of dismantling the can, weibbed has a lot more experience working with cans than I do and consequently their method is by far the best. Also added a new photo of the butterflies in situ.