Concept for Future Rengar Skin

Me and a friend of mine had an idea for a future Rengar skin feature that we thought would be very interesting to add, we thought that the skin would have a simple start and then for each bonetooth stack you get it would change the skin a bit and at the end he would look completely different. For example if this was done for headhunter rengar one stack could be the mask another could be the baron head on his shoulder and his other shoulder pad and so on and so forth but ideally this would be implemented on a new skin of legendary or higher quality. The look of the skin I would have no idea of I just thought this was a decent concept and worth sharing.