Even if you aren't crazy about M&M's like me, this was a nice little \"free\" attraction on the strip.  Has four stories of merchandise - top floor has a race car that you can take your picture with.  They have a free movie, however, it was broken while we were there so no show for us.  = (  \n\nPrices were a bit steep, but in line with Vegas standards ($10 for a baby bib, $28 for shirts, etc).  The red M&M was out on the sidewalk for photos.  We thought it was a stuffed animal at first because it didn't move and interact with the kids.  We asked and was told that it was a costumed character.  Not sure if it's just hard to move around in there or they weren't really into their job.  All in all, a nice 20 minute walk through attraction.