The Onigiri is a custom-made triangular-shaped yo-yo designed in Japan. The CAD design was printed on a 3D printer. The yo-yo itself uses Duncan's MOD Spacer 5158PK for the internal components. The parts kit includes a Dif-e-Yo 10 ball concave stainless bearing, clear pink plastic MOD spacers with Duncan SG (silicone groove) stickers for response, a long threaded axle, and patent-pending reversible metal bearing spacers. The yo-yo is made from 3D printing filament. The side caps are from a Duncan Freehand. The Onigiri was made on-demand only.
Original retail price: $90 US.
Onigiri is a popular Japanese food made from white rice formed into triangular or cylindrical shapes and often wrapped in delicious nori (seaweed).
Of interest... To see all non-circular yo-yos in this museum, in the left panel, select Exhibits.
In the right pane, in the Name/Model field, type shape, then select Browse.