I ordered some pigeon decoys from Amazon for about $20 a while back. I didn't realize that they would be coming all the way from China, and I had to wait several weeks to get them. The box, which weighed next to nothing, was crushed so I expected there would be damage. The birds are hollow and made from a rubber-like material, so even though some were crushed they were still usable, a shot of compressed air restored them. But they were really light weight, if they were on the ground even a slight breeze would blow them away.
What I did was to slit them open on the top and filled them with plaster of Paris. That gave them the weight I wanted but it also made them top heavy and I couldn't use the clothes pin attachments. I removed them and cut some old paint paddles to make a base. I just hot glued them in place and painted the wood flat black. Later I used some spray paint to make them a bit more pigeon-like in appearance.
https://www.amazon.com/TOPARCHERY-Slingshot-Shooting-Decoration-Courtyard/dp/B07T8G2N1P/ref=sr_1_9?crid=YEJNQS9ZEVGX&dchild=1&keywords=pigeon+decoys+for+hunting&qid=1623864728&sprefix=pigeon+decoy%2Caps%2C208&sr=8-9
What I did was to slit them open on the top and filled them with plaster of Paris. That gave them the weight I wanted but it also made them top heavy and I couldn't use the clothes pin attachments. I removed them and cut some old paint paddles to make a base. I just hot glued them in place and painted the wood flat black. Later I used some spray paint to make them a bit more pigeon-like in appearance.
https://www.amazon.com/TOPARCHERY-Slingshot-Shooting-Decoration-Courtyard/dp/B07T8G2N1P/ref=sr_1_9?crid=YEJNQS9ZEVGX&dchild=1&keywords=pigeon+decoys+for+hunting&qid=1623864728&sprefix=pigeon+decoy%2Caps%2C208&sr=8-9