Disappointed by the news that the Trump administration was walking back the plan to put Harriet Tubman on the $20 bill, I created this stamp to convert Jacksons into Tubmans myself.

Though anti-counterfeiting laws prohibit the willful destruction of, and stamping of advertisements upon, paper money, pursuant to I.I.18 U.S.C. § 333 of the United States Code, stamped currency is fit for circulation so long as its denomination remains legible.

A full explanation of the legality of currency stamping can be found here:
https://blog.adafruit.com/2017/10/15/hey-steven-mnuchin-making-harriet-tubman-20s-seems-totally-ok-ustreasury-stevenmnuchin1/
and here:
https://www.stampstampede.org/faq/yes-its-legal/

Handle is 3D printed, stamp is laser engraved.
Included on Thingiverse are three versions of the stamp handle, and the necessary vector files for engraving the stamp itself.

MATERIALS
Rubber: https://www.rubberstampmaterials.com/laserengravablerubberandpolymer.aspx
Ink pads: https://www.amazon.com/gp/product/B0056ETF8I/ref=ox_sc_act_title_4?smid=ATVPDKIKX0DER&psc=1
Glue: https://www.amazon.com/Insta-cure-filling-Bob-Smith-Ind/dp/B0000DD1QQ

Pre-made stamps are available for purchase through Etsy:
http://tubmanstamp.etsy.com

How to use the stamp: https://vimeo.com/250692555
Manufacturing videos: https://vimeo.com/319394691
More information and history at https://tubmanstamp.com/

Custom handles (rubber stamp not included) are also available to order through Shapeways:
Classic handle - http://shpws.me/QKTB
Slim handle - http://shpws.me/QKTA
Minimalist handle - http://shpws.me/QKTC