by clothbot, published
Variant of the Bukobot Fly to print with PLA directly on tissue paper.
It's a work in progress, but this is the one I was printing at World Maker Faire 2012.
Print on tissue paper with PLA.
Fold up V-tail.
Add LEGO pieces (or equivalent) to front to add weight as needed.
My code repository for this design is at https://github.com/clothbot/makerbot/blob/master/fabjects/Toys/Fliers/PaperFly.scad
For guidance printing PLA on tissue paper, see my Instructables project on the topic: http://www.instructables.com/id/3D-Printing-PLA-on-Tissue-Paper/