Hidden Product Option? Need To Pass Unique Instructions To The Order Per Product

Just throwing this out there: I'm looking to tie some hidden info to option variants that appears on the line item in the order, but doesn't appear on the storefront within that option.

For example:

1) customer buys a shirt with logo = Acme

2) receipt shows: shirt, logo = Acme (12345)

The "12345" would be a filename for that logo.

My current idea is to use javascript to strip out the "(12345)" text from the product option SELECT in the storefront.