Osprey Bird Spike Ring

I bought an Osprey Weather Station and after I got it I noticed that they had an optional Bird Spike kit. It's $15 plus shipping. Not happy about that. I got around to drawing up my own. Yeah it's faster to click a button and order one but I'm too cheap and the printer purchase just earned some money back by printing one. I had some 1/16" stainless welding rod in the garage to go into it. You may have to use a 1/16 drill bit to un-snug the fit. It was tight off my Prusa.