Translation requested for costumer

Una cum texto sum
In Latin, the last word, sum ("I am") would often be dropped as understood.

Note that texto (the ablative case of textum) refers to woven materials.
There is also a Latin word fabrica that is most often used to refer to hard
materials, but is sometimes used to refer to any man-made material.
Since most who read the motto will be English speakers, you may want to
substitute fabrica for texto to avoid confusion.

Thank you!!! She loves how that came out!

Glad to hear it.
Has "Game of Thrones" sparked any more interest in SCA?

Not that I've come across. The series "Vikings" has in some areas, but so did "The Tudors."