Acrylic 

Acrylic is a useful, clear plastic that resembles glass, but has properties that make it superior to glass in many ways. Etching on acrylic is the easiest way which comes out looking like white text. However, printing other colours e.g. black or gold, can be done straight onto acrylic at a different price. But depending on the size of your items, additional vinyl printing onto acrylic might be more cost effective especially on some bigger scale items i.e. welcome signs (not seating charts). It really depends on your requirements.

Acrylic Thickness: between 1-3mm.
Acrylic Color: Available in a wide range of colors. 

Pricing: Quote is based on quantity and type needed.
Estimated turnaround time: 3 week +/-