I’m not a yoyo maker but I do like the idea of designing yoyos
I think that a wood metal hybrid yoyo would be excellent, it has been done by yoyo jam but it’s an old collectors yoyo made of bamboo and stainless steel
I kinda like the idea of updating a TK sleep machine with modern parts (c size bearing, half or full spec, recessed silicone pads, and carve the halves like my Jon gates OG-OM for pull starts and finger spins…