I have two new Maxell Laptop Locks. Model C-Lock Portable Computer Lock 6FT. Item #347087. Item is sealed in its original packaging. They are $15 each.
From the manufacturer:
Maxell’s combination Laptop Lock is the perfect companion for on-the-go computer users wishing to keep their portable computer safe while away from it. The customizable, 10,000 possible combinations lock allows personalized key-less entry.