Font can be used to write in a constructed languege called Hardi (it's made by me). 

Thai-ResPriv is an alternative way to write Thai designed by Jay and Pailin Strong. The name combines Res from respect and Priv from privacy, and this script is designed for privacy.

Learn more about Thai-ResPriv on Omniglot here:

https://omniglot.com/conscripts/thairespriv.htm