(I was holding out for the glow-in-the-dark constellations, but there seems to be an international shortage. So I went for this one, which matches the rest of the pale green suite.)
I'm sure that in the world of people who are good at DIY it's possible to fit a toilet seat without at any point looking as if you're trying to have sex with it, or resting it on your forehead because you've run out of hands. But at least I got through the operation without dropping my Swiss Army knife down the pan.
Job well done. Do come round and use it. Just be gentle.