Need a recommendation for butt plug

[someonelse]

Hey, I want to buy a regular butt plug that imitates the width of a small to standard knot of a small to medium dog.
I want to experiment how flexiable my hole need to be for it, and how it feels when it stay inside and push outward from inside... Please recommend me of something discreet, just a regular black plug, no realistic dog like toys.
You can also help me by telling me the specifications I need to look for. Thanks

 

[dartel]

Just get an inflatable plug.

 

[KumottaTenki]

Etsy or Ebay might have something, just dont trust amazon toys. AFAIK this is the only name brand knotted butt plug.

 

[someonelse]

My question is what is the girth of avarge small knot, 6''?