Handcooler bike grip!

Handcooler bike grip! Put it on your handlebar for cooling your hands on warm days. Glue some aluminum strips in the groves, to conduct heat away from your hands, to inside the tube. And put a wet sponge in the compartment inside it. Add water if needed and the evaporation in the headwind will make the grip feel nice and cool. Should be fairly easy to print standing up on the back end.