Wash and dry your teacups.

Place a little hot glue on the bottom of the metal wick tab.  

Press it into the center of the teacup.

Melt the soy wax flakes in a pitcher placed in a pot of simmering water.

Stir occasionally.

Once the wax has melted remove it from the heat.

Stir in the fragrance oil.

Pour the wax carefully into the teacups.

Use a straw or a long clothespin to hold the wick in place. 

Wait 20 minutes for the wax to harden and then move the wick into place.

Let harden overnight.

Cut the wicks to about 1/2 inch.