I tried to design a windproof ashtray, i hope it works, the center sphere is for you to put out the cigarrette, i printed it in PLA but i don't think that PLA is the best material for an ashtray, if you print it let me know how it worked for you, this design was made for a friend of mine. You will also find the 3mf file if you want to modify it yourself, i made it in fusion 360. Also when i uploaded it to orca i realized that i did it oversized, so i had to scale it from 100% to around 55-58%