We spell it wrong 
I felt similar to you TSM. I though it was either to y-ey or to vowel-y so we spell it Bryonie. Which just adds to her pain because on the very rare occassions she does find something with her name on (this happened only once) it is spelled Bryony.
Christmas cards are interesting. We get the correct Bryony, Briony and also Briannie, Briany, Breeonie, Brownie
, Bryanie etc.