Default [Q] Barcodes on the Gear Live

Hi, aside from dedicated apps (like American Airlines), any ideas the best way to display a barcode on the wear screen quickly and effectively, I'm thinking for

- Starbucks card
- Other loyalty cards (who may never update their apps)
- Other airlines (same)

Cheers! Loving Day 2 of my Samsung Gear Live. Slightly miss having a speaker, but otherwise it rocks compared to the other smartwatches I've had...