Hola Enrique,
No se preoccupe su ingles. Yeah, "tattoo" is the word in English.
Unless I'm mistaken, CRT V.I.P. members get a discount at a tattoo place near the Gulch; do a search on the V.I.P. discounts, and you'll find it. I also have a tico friend, Marco who does good tattoos at a good price.
You know, this could be a conversation starter with the chicas! Find a hot little one who has visible tattoos; if the tattoos are well-done and artistic, ask her where she got her work done. Tell her that you want to have "peligro" tattooed on your picha...
Buena suerte, amigo, y bienvenidos a CRT.
Con mucho respeto,
Paul