Ah you remind me so much of me when I was about 13.
I like these:
Beatrice- Beah (prefer
Bea or
Bee)
Damion- Dame is fun, but I do hope you know it is a 1930's byword for "woman".
Jamester is really fun
Mackenzie-
Mack, boy only
Olivia-
Oli,
Olive Samuel-
Sam boy
Thomas-
Thom (am strangely fond of
Thom. I wonder if just
Thom would be acceptable as a full name? I do not like
Thomas.)