Where are they in the AA app?
I’ve been looking for them for a while after reading this, but I can’t find them...
Not in the app. When you go to send a text message, click the /\ at bottom and then select the AA (or now DL) app logo. That'll show the images you can send.
I also had no idea it was there, but a while ago accidentally clicked that and the AA app and saw those there.
All the apps that have these will appear there.. you may be surprised at how many apps have these nowadays!