T-shirts and other such things can be found from two print on demand sources.
The quality of the t-shirt prints is variable. Some reviewers find that teepublic does a better job.

Etsy (print on demand by Printful.com)

teepublic.com print on demand


Email me if you are interested in getting hammer to see if I have what you want.

I usually have some regular and short Bombproof drill holders on hand. Send me an emailfor the current availability

The most up to date information is on Facebook.

DAMMERR on Facebook

I occasionally make a few spinning tools and
pullers (with wrench) for removing 3/8" wedge bolts.
For an understanding of what they do:

https://www.youtube.com/watch?v=vpxKZrKNnV0

https://www.youtube.com/watch?v=OENST7m8iaI