Snickers Nougabot Minis in 10.5 oz bags on sale for 2.50 at Target, As well as the 11.4 oz M&M's @ 2.50. There are 4 different Bits and Bytes captions on the backs of different bags of Snickers Minis. Otherwise, the Bumblebee artwork on the front is the same on all 4. It will probably take 1-2 days to fully transform these, but I will not be following up with alt mode pics on this post...

http://www.tfw2005.com/boards/transformers-movie-discussion/232635-strawberried-peanut-butter-m-ms-twins-promotion-found.html
I bought some of the M&M's a couple of weeks ago, they transform in your mouth, not in your hands...