Not sure what I'm thinking these days, but I've decided to add Big Cartel to the experiment this week. Mr. Felt Food Kids thinks I'm a bit nuts but he loves me, he's wonderful and he's used to indulging me in my ideas.
Big Cartel lets me list 5 items for free each month. No commission even if items sell. Their fees to list more items are a bit steeper than HC or Etsy. Still, if I reach a larger customer base....right? I'll be able to use my google analytics data to see if it drives more traffic to the Etsy shop (http://www.etsy.com/shop/FeltFoodKids). In my 5 items' descriptions, I added a link so buyers could go to the Etsy shop for better selection or international shipping. BC was very easy to set up. I could see expanding if I see sales or lots of traffic coming through the site.
Update on Etsy vs. Hyena Cart: No sales through either yesterday or today but I have had signs of traffic through each.
I'm having fun with this experiment and hope you're having fun, too!