Where I live (the netherlands) we also have a sort of secret santa tradition, though it happens on another date (around 5 dec), and the deal is that you have to to package the gift in a fun/original/creative manner, which may or may not be accompanied by a small poem about the gift or person. Some examples of fun gift packages I've seen:
1: A stuffed horse whose head had to be pulled off to reach the gift that was inside
2: A tube decorated to look like a candle
3: large firecrackers
4: Box decorated to look like a shark, with a whole where it's mouth was - grab the gift inside.
They sound elaborate, but there are plenty of ideas which are fun and easy to make. Of course, people must like the creative idea and not be too lazy about it. The benefit is that it doesn't really matter anymore when everyone buys giftcards - it's more about the fun to see people trying to unwrap their gift!