If you're like me, you hear "like nailing jello to a wall" and you immediately translate the phrase to "impossible." Fortunately, not everybody thinks that way, as this scientifically inclined person demonstrates. The man (while I don't know the person's gender, I'm assuming only a man spends so much time on a project like this) chronicles his attempts to nail jello to a wall, starting with the expected tragedies but culminating in triumph.
He then attempts to nail jello to a wall while the jello is vertical! Did he succeed? You'll have to check the extended entry to find out: