Employee Appreciation Day - £5 per head

[justlikebuses]

I need some ideas. I have a budget of £5 per head to show appreciation for our employees.
In the workforce we have:
Multiple sites
Workers who will be off shift
Workers who will be on night shift
Day workers
Management against vouchers for costa etc.

I'm coming up with cake. That's all. Please could you sling some ideas my way.

I think everything is changing at the moment - staff want to know they're appreciated from their daily experience at work, rather than from half a pizza once a year.