I assume you are referring to the game lab projects?
If so, they could click on share and get the “share” link for each project and then use that link in weblab on their websites. They would just insert them as a normal link (using code such as the following):
<a href="https://studio.code.org/projects/dance/-Wx6H4c8Gto5a0WvWFX6VfLUg2sP6HkGS7U8jM0a66M">My Project</a>
Hope this is what you are asking, but if not, let us know.