Paint your pots however you'd like. Spray paint or acrylic paint both work great. Let dry and apply a coat of clear spray paint to seal.
Apply a thick line of hot glue to the rim of the pot.
Add your styrofoam ball/dome and press firmly.
Begin poking your lollipops into the styrofoam, placing them close together. Note: It is a bit deceiving when you start. It doesn't seem like you'll need very many, but it took over 120 lollipops to fill up this one ball.
Find a great spot to display your cute lollipop tree!