The kids made "Colorful Henna Hands." The ink is water based so it won't stain clothes and is non-toxic, so it's hand-safe.
Fall Leaf Craft Idea: Gel Pens - Arts and Bricks
Henna Hands — Art Room Projects
An Ultimate Guide on Henna Tattoos to Look Gorgeous – Mihenna
Henna inspired black gel pen drawing that I did on my arm last year
Henna Hands Craft
Henna Hands by Kids - ARTBAR
How to Draw a Henna Mehndi Hand Design Free Art Lesson
Notebook Doodles Henna Style: Coloring and Activity Book [Book]
Crayon Resist Henna Art for Kids - Happy Toddler Playtime
Henna Hands - With Gel Pens Kids Activities Blog
Henna Hands Craft for Children - Homeschool Companion
Henna Hands Craft for Children - Homeschool Companion
Red Henna Cones Bridal Henna Weeding Mehendi Fast Color Tattos Body Art Natural Halal Red Henna Cone Tattoo Body Leg Arm Art Party Henna
Henna Hands - With Gel Pens Kids Activities Blog