How I made my D.Va guns you saw on stream ^^ It's fully carved out of insulation foam , layered with gesso, sanded, then painted . I think it would be better to use a small pvc pipe if you cant get the foam rounded for the barrel !
Streaming Overwatch again! https://www.twitch.tv/rinnieriot/ I will have a giveaway for Overwatch tomorrow and I will be cosplaying as D.Va ! <3 I hope you can come by today and tomorrow <3