From the Artist, Terry Butler. "This has to be my easiest project EVER. Each finished project took maybe 5 minutes - 10 tops. I found the skeletons at Dollar Tree - 4 to a card. They popped apart into two pieces and each section was flexible enough to fold up and squeeze through the opening. They popped back together inside the bottle with a simple tool (coat hanger wire would work). The handled one is an old syrup bottle I think. The other is probably a flat whiskey bottle - 8" high with cap and 3.5" wide. They just don't get easier or cheaper than this. This would be a super cub scout project or a project to make for a Dr. friend or chiropractor."