This Central Pneumatic (Harbor Freight Tools) hotdog-style air compressor is a decent buy for the workbench when its on sale for <$40. The lack of built in storage, and the chunky power cable however make a bit inconvenient to store or move around.
These printable accessories give you 1) a convenient place to wrap and secure the power cord, and 2) a rigid place to store your basic attachments.
The cable wraps/hooks should be printed with 100% infill. Mount these using any two screws on the compressor's housing. See the picture for reference.
The accessory mount gets firmly pushed into the opening on the handle. Some hot-glue may be required as I found the opening to be a little elliptical. The little clip included with this part allows you to secure a generic pressure gauge to a generic tire chuck.