Following a request from a faculty member, we have enabled embedding of objects from Sketchfab. For details on how to embed objects from this service, see Embed Models documentation from Sketchfab to get the instructions on how to get the necessary block of HTML code. Then, you can embed that in myPages using the Media browser item in the WYSIWYG editor controls.
Here's a sample:
Know of other useful services that would support your academic websites? You can submit a request to have them enabled in myPages.