It should be easy enough to create a new tiddler for each day, but I was hoping to reuse a single tiddler. It seems like a waste otherwise. Is this even possible?
I would call a spade a spade, I would name the tiddler something like "Review project items by date" and let the user chose the date. If you then wanted to keep a dated project items tiddler have a new tiddler button that uses the selected date to generate a dated tiddler title. Perhaps even find a way to snapshot it so if project tiddlers change, to still see the list at a moment in time.
Our imagination is the only limit but avoid compound tiddler names and store dates in fields not titles. The journal buttons have a lot to answer for here.
Regards
Tony