Looking to rent burners for guests to make smores at reception....where?

First, talk to your venue and be sure they will allow this.

Did you check Home Depot, True Value near the camping equipment? maybe even Bed Bath and Beyond over by their fondue pots

http://www.idealtruevalue.com/servlet/the-62365/Detail

anyone crafty in your family that can build you the holder?

Thats the picture I found on pinterest... Thank you for posting it! I just really kind of want this, but know I'll have to chek with the vendor first. ...and it may not be possible....

One of our 11/11 brides brought in that pinterest pic for a smores setup. My husband thought the sterno cans probably weren't safe as a flame for roasting food for consumption (they're sold as a heat source for water pans for the bottoms of chafing dishes). Instead we used a black tabletop Weber ($30 @ Home Depot) set on a round table, cute & it worked very well.

They must be safe, that is what they sell/suggest for the s'mores kits

http://www.amazon.com/Casa-SMores-Maker-Ceramic-Round/dp/B0004JTI0U%3FSubscriptionId%3DAKIAJBMAMB3UBUGQC5VA%26tag%3Ddbs0e1-20%26linkCode%3Dxm2%26camp%3D2025%26creative%3D165953%26creativeASIN%3DB0004JTI0U

The little weber sounds like a cute idea too.