This is truly a do-it-yourself item. In more ways than one, that is.
Japanese Twitter user ZMD11S uploaded photos of this customised Gundam model with wings made from a Tenga masturbation aid. That's right, this is not available in stores, nor is it an official product.
If you have a dick, or if there is a dick around you, do not put it in here.
The two wings come together (word choice, sorry!) to form a giant Tenga cannon that, as ZMD11S points out, can only fire once.
Needless to say, these photos have been retweeted many more times than that. As of writing, they have crossed over the 22,700 times mark.
Top image: ZMD11S