Lego Znap Lego ZNAP Set #3552 Hover-Sub with Electric Motor. Instructions for more than 22 Models, Contains 122 parts including an Electric Motor. Znap is a Lego theme that was produced from 1998-1999. It is similar to K'nex and can also be used to build objects in a frame-like way. The plastic it is made of is slightly flexible yet strong. Also contains Technic and regular Lego parts. Made by Lego in 1998 and long out of production.