Grumpy Old Geeks Products Smalt Product Smalt 2 mentions in 1 episode Smalt is described as a smart dining centerpiece that holds salt, plays music and has a light. Mentions 209: Smalt & Pppr May 15, 2017 1:28:16 It holds salt and plays music and has a light in it. 1:29:59 Smalt is a smart centerpiece designed exclusively for your indoor outdoor dining area.