Need Help!!! My Brain can't Brain!!

Hey everyone! So I was on Pintrest the other day and saw some really cool six characters challenge that some one had done for epic (I uploaded them below so others can appreciate the amazing artwork). Not sure who or I would tag them for their amazing skills but my brain is going crazy because I'm trying to figure out what telemachus is holding in his picture. I think it could be like a pan flute but that's the closest I can think of. All suggestions are welcome!!! Thanks and Hope you all have an EPIC day!!!