Lots of my friends have been playing with this colourisation tool. If you haven’t tried it yet go to the link and click Upload Photo. As your photo is uploading you’ll be prompted to login or sign up. The login link is right at the very bottom of the popup window. It is free to sign up to My Heritage and the photo colourisation is free too.
You can download each photo as you colourise it or you can go to ‘My Photos’ and look at all of them and choose which ones you want to download from there. I don’t receive anything from My Heritage for publishing this post, it is simply that I like the tool they’ve created.