mehndi with icing

so ive searched for icing recipes and the hardest icing that i think that might work better than others is royal icing

so this recipe was as follows

Ingredients:

• 3 egg whites, at room temperature
• 4 cups powdered sugar
• 1/2 tsp cream of tartar
• food coloring (optional)

i tried avoiding using eggs because im vegetarian and used vinegar as a substitute for now just to see if it works or else il have to try eggs.

Im using tracing paper so hopefully they will be easy to pull off.

i put them in the freezer for a few hors so that they were hard,although it was difficlt to get them off the tracing paper they began to crack.