Attach clothes pins to your pussy lips and pull it open as wide as you can. Wear a collar and knee socks. Hair in pig tails. You'd better slip a toy into your ass, if I was there that's what I would do. Can't wait to see what you come up with.
Then go to the shopper drug store and get a small one, they're I family planning, Then the hardware store and get some tape. Then put them together like I said.
Personally, I'd be gentle with my dog. I would have to insert and remove her tampons because she's a dog and couldn't on her own. I'd also wipe her often with a warm rag making sure I get her clean inside and out. And finally give her a very deep massage to help release her period.
I think you should take a small vibro bullet turn it on and place it between your lips, then use a piece of duct tape and tape it in place. Then force yourself to walk and work all day with it driving you completely crazy.