This site has users with simple image urls - https://randomuser.me/photos
by converting the gender to 'men' or 'women' and adding a random number generator from 1-99 I've got an image URL. You may need to experiment as the highest I found for men was 91, and the highest for women was 94.
They also have lego 1-8
Alternatively if you can download the mock data from one of the other sites, you can add as a dataset.