Bridal shower
When I was getting married, 24 years ago, my coworkers gave me a shower. Each person invited to the shower was given a time of the day - ie. 7 am, 8 am, 9 am, etc. The gift they brought to the shower had to relate to the time they were given. I got coffee mugs for 7am, wine glasses for 8 pm, dish towels for 12 noon, cook book for 6 pm, etc. It was fun to see how creative everyone could be with the time they were given and I got great gifts too.