I have one of the baby mojos and let me tell you the wings sink like a stone. Of course it was too deep to get it back , so I had to come up with a replacement. After a little pondering and a trip to the craft store I was able to put together a pretty good replacement with some corrigated plastic poster board and a section of an old aluminum cleaning rod. I even found some thin sheets of white foam to glue on, so the wings now float. It was cheap and easy so I'm going to build a spare for the next time. Thought I would pass this along in case anyone else runs into the same problem.
dave