Not that I have a tattoo to cover (I don't) but I wonder if this would work with spider veins and broken capillaries? How to cover a tattoo with makeup-- good for job interviews where you're not sure if tattoos are allowed.
Use red lipstick covering the outlines. Pat on a light concealer, using a setting powder. Pat on your skin tone conceaer. Clean up any mistakes using baby wipes to remove excess concealer. Use a fluffy brush and smooth it out with foundation powder.
How to cover a tattoo with makeup. This is for my nursing student friends who have tats. It might not work for the wrists with all the hand washing, but the other exposed areas it would (say good bye to band aids).