These teeth were inspired by the vampire teeth from carnival supplies.
Unfortunately, they always fit badly, but scaling gives you the opportunity to improve the fit a little.
And of course, self-printed is always better than bought.

These teeth can be printed without support.
After printing, the corners of the mouth can be carefully warmed, bent and then the teeth can be inserted into the mouth. I have printed these out of PLA.

Alternatively, the teeth can also be printed from TPU.
This is much more comfortable to wear and nothing can break off.

But please be careful not to hurt your real teeth and not to choke on them!