There are many commercial products available at craft supply shops. You can use fine brushes or auto detailing brushes. You can even use pre-printed transfers.

Make some 3D figures to attach in the front. It will look more beautiful if you do so. Add some flowers, butterflies, designs, or even try making your own name out of clay and attach it! You can call it a personalized pot. Get a 3D Glitter Glue pen and decorate it with beautiful designs. Put stickers. Make it a candle stand. It would be beautiful to see a light glowing inside it.