Just before Christmas gift exchange, I heard Alton Brown discouraging the use and gifting of single-use kitchen tools. I also used to pooh-pooh such things, and some of the items discussed in his interview his interview truly perplex me (a square hard-boiled egg?). However, one such tool has a permanent place in my gadget drawer:
The main blade is all plastic. While it easily slices the skin and flesh of the fruit, you would be hard pressed to scratch yourself with it. The only metal pieces are within a cupped area. They are not sharp enough to cut skin, yet they grip the pit and easily twist it out. Finally, the plastic blades in the slicer easily cut through ripe fruit, but I cannot imagine anyone hurting themselves with it.
I used to dismiss these things as nonsense; I could use a chef's knife! Then, I cut myself pitting an avocado and ended up in the emergency room. My payment for that visit (not to mention the subsequent infection) would buy more than 45 of these tools. One of my nurses suffered a very similar injury this fall, also while pitting the fearsome green fruit. I gave her one of these devices.
We are worth it.