My pond-scale steamer is nearing completion. Build log here:
http://www.rcgroups.com/forums/showthread.php?p=13738679

Pending a sucessful test in the dog's wading pool (all other water frozen), she will be powered by a Midwest Heritage single acting oscillator. The Midwest boiler will be fired "pot boiler" style, using a ceramic burner on butane. The same scheme was used sucessfully for John's Steam Tramp Winifred.
http://www.rcgroups.com/forums/showthread.php?t=717385

Sucessful test steamup on the water, after we changed gear ratios from 1:4.6 to 1:7.35. Further details in the build thread (url above).

Wading pool video here:
http://www.rcgroups.com/forums/showthread.php?p=13831276

Long and short versions here:
http://www.rcgroups.com/forums/showthread.php?p=13974543

Pretty against the ice and snow. The ducks did not seem to mind much, just hauled out on the ice.

Several more duckpond videos posted over on rcgroups.com (the above url).