Yes, there are a lot of kits and charts on the net, or you can design your own once you know the basic patterns. When you have done a few lines, you follow on from the previous rows, so no need to keep checking the chart (and going cross-eyed)
I did the one in the photo making it up myself, to use up a whole lot of wool that I had accumulated (can send you a chart if you PM me your home email or postal address.) You can also use embroidery thread, if you have it, but you need 9 strands of Anchor stranded cotton to cover the canvas which means cutting two lengths and halving one of them to use three out of that as well as the six in the other, it gets a bit fiddly, but looks lovely and silky.
I think that's lovely Elegran. I've just used a load of random threads on a band sampler with the DGCs initials and dates of birth. I'm now using up wools and an odd piece of canvas. I'll still have too much left.
Odd bits seem to multiply themselves. You use them up on something but don't quite have enough, so you have to buy more - then you have to find some way to use up the bits left over from what you bought to finish the thing you started with the previous leftovers. It could go on for ever!