<<Disclaimer: Verify this information before applying it to your situation.>>
Can't remember who needed English muffin rings ... but just stumbled
upon them ... the Gluten-Free pantry carries rings, $3.95 for a 6-pack:
http://www.glutenfree.com/baking1.htm
Tracey in Connecticut GF lodging: http://www.innseekers.com/feature.htm