Iterating on the previous 'plain' hairclip (see comparison image), this new SLIM version disposes of the need of a 3rd spring, and trims down the size significantly without reducing strength or function.
I personally find this version to be even more secure to wear, but feedback on how it fits on other people's hair would be very welcome indeed!
This particular rainbow version, I printed using a welded-together string of several colo(u)rs of ABS - coming to a total of 79cm (31") of 3mm filament.
The Nyan-Cat add-on, can be printed separately, painted, and glued on with hot glue.
Nyancat YouTube video: http://www.youtube.com/watch?v=QH2-TGUlwu4
Choose your colo(u)r, and print without a raft.
If you want the NyanCat add-on, then print the file WITH a raft, and carefully peel it off. Paint the Nyancat, and add to the end of the hairclip with hot glue.
NyanCat-Mk2 has been designed with indentations for the eyes and mouth.
NyanCat-Mk3 has a flat face.
In all honesty, without the application of a LOT of smoothing acrylic paints, the Mk2 Nyan Cat face is a bit traumatic to look at - the Mk3 version is easier to paint and/or glue a 2d print of the face, to.