>>7188688>>7189022Sorry, I wanted to have a larger reply, but comment length. You could also try searching for anything tagged "mech", because they'll generally incorporate a lot of Technic elements, and the key thing is ball joints. I'm not entirely sure how compatible a lot of the new ball joint bricks are that come in current System sets. My Bionicle figures are at my mom's place, so I can't test a lot. Still, other elements like the brick with holes or brick with axle hole can connect with a lot of Bionicle parts -- basically look for anything Technic compatible. After all, a lot of System sets will incorporate gear systems Try looking at older themes, too, like Exo Force to get ideas. First generation Bionicle masks are also compatible with System via their 'stud' joint. Fun things can be done with other parts, just check this MoC I found:
https://flic.kr/p/L6ZdQV>https://bioniclebuilders.wordpress.com/2014/09/21/an-introduction-to-bionicle-building/ 