Instead of the gift card aspect, I simply made the top into a card.
Then I found this lovely idea to make snowman tea lights. I'll add where I found the idea later, since I've forgotten at this time. Anyway it was pretty easy to make these two gifts, and I'm sure the staff at work will love them.
Now I'm getting busy with making the 31 student gifts. I'm making 2 types of decorations for them. When they are finished, I may make a tutorial for them.