The GE Profile bottom-freezer has an ice maker with a very big ice bucket. The ice maker will make ice until the bucket is full.

If you don't need that much ice, this bracket will block half the tray and give you more usable freezer space.

Work in progress.

Notes:

• I printed mine in PLA, not sure how long it'll survive in the freezer. It really should be white.
• My printer can only print 200mm x 200mm. If you have a larger print bed, you might want to measure and scale it up a few percent. I think the ideal size would be more like 210mm.
• The asymmetrical triangle matches a ridge in the freezer to hold it in place. Check that your freezer has this ridge or it might not stay in place.