Google "ascii art editor", and see what you can get out of that. There are a few programs that let you make your own AA from scratch or from regular picture files.

I think what >>3 was referring to was kopipe or copypasta, lifting ascii art from other places and changing it to suit your post.

But just because most people who like AA take the easy way out doesn't make you silly for wanting to do it on your own, nobody'd have copypasta if it weren't for the people who made the originals...