I've liked "cute" names that are related to their original responsibility in some way. E.g. we had a messaging service called "McFeely" after Mr. McFeely's Spee

I've liked "cute" names that are related to their original responsibility in some way. E.g. we had a messaging service called "McFeely" after Mr. McFeely's Speedy Delivery Service from Mr. Roger's Neighborhood. When someone gets onboarded, they'll encounter these names and will have to ask. It's a short anecdote, and it sticks. I'm personally a fan of these, as long as the stretch isn't too far. Themes around names can be nice, too. (As with the above, Mr. Roger's Neighborhood.)