Here's a fairly simple papercraft for you. It's quite large, but so are the pieces (for the most part), so it's not too fiddly. Bombchus made a return in Hyrule Warriors as gigantic mechanical bombs, with a much more detailed design than ever before. If you let one explode in one of your keeps, you'll lose it immediately, so be careful and destroy them before they can explode!
Dimensions:
Height: 11cm
Width: 18cm
Depth: 30cm
Pages: 5
Parts: 51
DIfficulty: Easy/Medium