Voodoo doll for therapy?

My dbt skills workbook suggests using a voodoo doll as a "healthy behavior" alternative to harming myself or others. I feel like this might possibly benefit me just to stick little pins into a little body. Not with the intention to hex someone or give someone bad karma or whatever. But idk I still feel like it's creepy? And maybe not healthy? Lol I mean it's an odd thing to have and do. Also I can't find a doll used for therapy online. They're all voodoo dolls that look creepy or authentic.

Idk. Thoughts?

I have bpd and often feel the urge to hurt myself or others.