Ah, but the one from Conrad is made by Alps - and that's pretty easy to track down. Having scoured their data sheets quite a bit, I'm surprised I hadn't seen that kind of thing til now. Since my original post, I did come across LEDtronics, which makes a crescent bar-graph array, but so far they're the only ones I've found that make something like that. More practical that the TOP-UP ones, but minimum quantity is 100, and unlike Alps, other companies don't carry them.
http://www.ledtronics.com/products/ProductsDetails.aspx?WP=C91K162