The Elderberry we have in the U.S. Comes in two types, red and black. In my opinion, black is the better of the two for blowguns, I have never seen red elderberry big enough to make a blowgun. The type of elderberry they have in Europe is a different type as well I think, it's harder, stronger and more elastic then what we have in the U.S. that said, I am guilty of trying to make an elderberry bow, it was black elderberry. And in Florida, the stuff gets to around 1 1/4 inches in diameter so I found a nice straight piece and attempted 54inch shortie out of it. It snapped triumphantly.