The spiritual ancestor to the Extend Activity Bank is the DS106 Assignment Bank.
Head on over there, find a cool assignment (like this one) that might fit here in the activity bank and bring it back.
Submit it back here as an activity (crediting the source, of course!)
And then, like, do the activity of course!
“Fetch” flickr photo by A Humble Perspective https://flickr.com/photos/ahumbleperspective/2504170223 shared under a Creative Commons (BY-SA) license