30 Sheets Matte Premium Printable Vinyl Sticker Paper for Inkjet & Laser Printer Dries Quickly, Holds Ink well Tear Resistant Waterproof for DIY Personalized Stickers, Labels, Decals

I printed them at home since I have a color laser printer. If you don't have one, you can check your local library, or a local print shop. I used this sticker paper off Amazon (less than $10): https://a.co/d/1c7WE4x I've already sized them for the tiles, so if you just straight print onto regular letter sized paper, they should print the correct size.