I'm really surprised by the number of people who say the Bulk Barn Virgin Ice is soft and unworkable. I've been using this for years and although it's pricy, it's worked great for me. I've done several figures with this fondant and have had zero problems with it. It holds it's shape perfectly for me.
Now McCall's fondant on the other hand, was pure garbage for me. I took a trip to Golda's and picked up their giant pail (big mistake). This stuff is way too soft and doesn't take colour at all! I used wilton purple icing colour and it came out a weird bluish colour...terrible. The only thing this stuff was good for was covering plain white cakes. I ended up tossing about 1/2 the darn pail out.
I've been to Klara Johnson's in Cambridge and as one other poster pointed out, their stock is very limited, but it was the first place I was able to locate luster dust years ago.
I often take trips to Port Huron as well and have never found a decent cake store so I'm excited for the next visit...I will definitely check out Create-a-cake. One thing of note about Walmart US is that they carry a lot of the Wilton stuff for dirt cheap. I bought dowel rods for $1.50 a package last time and the bulk barn carries them for $5.99!!!! No kidding!