From the classic to the (slightly) crazy, io9.com offers it’s gift suggestions for the compulsive experimentalist on your holiday gift list.

Along with the traditional chemistry sets and telescopes, io9’s Scifi Gift Guide features more-modern technology including hobby lasers, robots and even a giant, ‘floor-model’ Tesla coil.

There’s something for every budget — from (US)$10 to (US)$1,000.

And, to keep the mad scientist in your house occupied more or less harmlessly for hours, most items mentioned come in kit form or, at least, require some assembly.