10. Sandvich Edible Device - Team Fortress 2
In the world of Team Fortress 2, you are constantly losing health and dying unless you are a serious pro, and even then sometimes it's impossible to not take hits.
There are three respites from this constant drain on your health. The first is med kits - because, well, they're in basically every game aren't they - and the second is the ever-trusty medigun of your team's medic, should you be lucky enough to have a player kind enough to spend their whole game basically getting yelled at. Some other weapons restore health, too, but it's usually not in a major capacity.
The third is category of "stuff that heals suffering players" is, comparatively, hilarious - because everything else is structured so you have to find either an unused medkit, or a friendly player.
Because the third category is an item for the Heavy class known as the Sandvitch. What is this, you ask? Well, it's... a sandwich, only Heavy prefers the letter V. Compared to technologically advanced guns and med kits, the idea a nice humble sandwich can also do the work is as wonderful as it is entirely silly.