Lyons – got some pics but will avoid posting them if I can help it…!
Basically kneel down with feet touching a wall (behind you). Put your hands in a diamond shape no more than 8 inches from your knees. Put your head "in" this diamond. Straighten your legs (you'll now be in an inverted "V" shape). Now push up from this position – very intense on your triceps. Not many can do them properly.
There's also "gecko" press ups and a few others.
If the text doesn't help, I will resort to pics.
Trying to do "planche" press ups but they are VERY hard. Getting there.
Can do around 150 press ups, 25 pull ups, etc, etc blah blah and weird gymnastic "stunts" using upper body strength (free standing handstand press ups, etc). All a bit pointless but kind of fun.