Another trick can be:
use symbol or number to spell letters.
Example: MICROSOFT
M1CRO5OFT
(use the #1 instead of I and the #5 instead of S)
MICRO$OFT
(use the symbol $ instead of S)
Just like the singer PINK that spells her name like this P!NK. She couldn't use the color name because is a registered and protected brand name already. Good luck with you choice.
Massimo