DIY Buttplug help?

So I know what you're thinking and yes I know the risks and I'm no stranger to anal insertions now I wanted to try something different despite already having a buttplug I want to DIY my own preferably on the larger side of things, I've looked into different plastics and my woodworking skills aren't that good so I'm interested what household items I could use or what I'd need to get from the home depot and I'm not looking for a disposable kind of deal, now I would drop more money on toys but I wanted to do something special yk