Way too much of a lawsuit risk from WWE. They technically own a trademark to the Mandy Rose “likeness” which includes gear she wore during events for them. This is why she had to change her name on her website as well.
She might be able to do stuff with her gear once that trademark expires though.
i think she can do it if she owns the gear/made it herself and it doesn't say her name on it anywhere... so, the boots with her name written on them she couldn't wear but just say the pink top/shorts if she owns them i think she can. With that said she couldn't refer to herself as mandy rose or the golden goddess or use any ring music, etc.