The glue stick butter applicator is just the right combination of functionality and silliness. I'm not sure that this idea is a commercial reality, but I can definitely see the potential.
One can't help but look at this picture and think, "Why not?" It may not be worth a thousand words, but definitely at least a laugh!
The no-nonsense design can save small amounts of time in every aspect of a meal. It's also eco-friendly. For example, fewer butter knives will need to be washed, and also reduces possible waste and cleanup time for the less coordinated knife users.