Securing usual complimentary items in cabin

[Journey Man]

Could anyone give some input (suppliers would be very useful) of methods you use to secure cabin items such as confectionary, catering, etc... in the cabin. Preferably securable via a seatbelt on the bench seat. Aircraft is a mix of lightweight/super-lightweight.

Any manufacturers who make a commercial solution that can be branded would be excellent.

PM if it's more convenient. Thanks