Obviously there is some cost involved here: your own consumables (paper and ink/toner). If you need a ream's worth of specialty sheets, you're obviously better off buying them.

Print your own festive temporary tattoos using your home inkjet or laser printer. ... If everything looks good, go ahead and put the tattoo paper into your printer–only print one page at a time.

Before you print your tattoo, make sure to use the included skin primer. When it’s time to print, Prinker rolls out a design at approximately 100 mm/s with a resolution of 1,200 dpi.

Customize your look with a few tattoos that’ll wash off in the shower. You can choose from 12,000+ existing tattoo designs or draw your own and have it printed on your body within minutes.