http://www.marcospecialties.com/pinball-parts/03-9249
https://bayareaamusements.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=GS-TS03-9249P
They were in stock a few weeks ago.
Looks like you might be able to get them here: http://www.ministryofpinball.com/en/the-shadow-phurba-dagger.html
Someone was producing them here, but they were shot down by PPS because they were in stock at the time:
https://pinside.com/pinball/forum/topic/for-sale-phurba-the-shadow-exact-replicas