A pocket mirror doesn't sound like a bad idea. Then again, I do actually need to make some changes to the way returning to a safe room works, because at the moment, pausing and returning to a safe room uses the same code as getting knocked out (hence why it also empties you of silicone).
Sadly, with just how much work is necessary to make a new costume, it's highly likely the completed game will ship with just the default costume, and the old one will be moved to a gallery room for viewing. Unless some artist with a BE kink and extensive experience making size variants were to reach out to me to ask if they could make a costume (and if anyone reading this is that person, join the Discord).
All that said, I'm really glad you enjoyed the game, and stay tuned for more!