Introduced to me on the Pai Sho subreddit, the Print and Play Pai Sho Set is the perfect way to get a physical Pai Sho set for little to no cost. This PDF document provides you with everything you need to print out your own Pai Sho set. Designed specifically for Skud Pai Sho this set is perfect for physically playing without the costs of buying an actual board.
If you are interested in using it for other styles of Pai Sho you can always print tiles from those styles and use them with this printable board.
The Print and Play Pai Sho set can be found here.