Albatross_Viking: Thanks! That is exactly what I was looking for! I'll be sure to post some of the castle-related custom 2x2 flags that I'm going to be designing over the weekend... Well, once I've printed out a few test sheets to make sure that I've got the right size and such.
Bruce N. H: Thanks for the help, but I'd already found that particular How-to article... Unfortunately it's only for making Pennant stickers (although I'm definitely planning on putting those templates to use as well sometime in the near future), but not the 2x2-sized dual-clip flags (which, TBH are more of a Pirate item, but some of the Classic Castle sets used them as well... I have a Black Knights 2x2 flag, courtesy of the Sea Serpent set).
Once again, thank you both for your help!
Captain Darling: "Look, I'm as British as Queen Victoria!"
Capt. Edmund Blackadder: "So, you're telling me that your father was German, you're half-German and you married a German?"