This uniquely shaped puzzle really does look like a UFO. The spheroidal pieces in the center may slip and slide away when you try to remove them, which makes finding the solution quite tricky. Designed by Vesa Timonen from Finland.
1.5 inch Super Soft Sponge Balls (Yellow) Pack of 4 from Magic by Gosh
1.5 inch Super Soft Sponge Balls (Yellow) Bag of 50 from Magic By Gosh
1.5 inch Super Soft Sponge Balls (Red) Pack of 4 from Magic by Gosh
1.5 inch Super Soft Sponge Balls (Red) Bag of 50 from Magic by Gosh
