Create one-of-a-kind style with the Fillable Glass Small Lamp Base from Threshold . The fillable lamp base allows you to fill it with just about anything in order to create a unique look for your home fill the open lamp base with old corks to place by your bar cart or add sand and shells for a seaside theme in your bedroom. The best part about the glass lamp base is that if you don't like the first thing you come up with, you can always empty it and try again.