Mandalas are already Zen, but a splash of blue watercolor makes them even more so.

Image via @johngraefe

Lotus tattoos make a nice nod to many different faiths, including Hinduism and Buddhism — plus, this design is kind of off the charts amazing.

Image via @ilwolhongdam

Math + watercolor tattoos = straight up awesome.

Image via @littlemissjesstattoos

In fact, all things celestial make for inspired watercolor tattoo designs.

Image via @r.o.s_tattoo

Let's add tiny cartoon rockets to the list of cool space things as well.

Image via @baoink_bao