You need to understand you are in survival mode. You cannot worry a whole lot about your former employees or even your soon to be former employees (if things don't get better).
You have a bunch of what amounts to part time employees that you are seem to be carrying benefits for. You really need to consider whether that is affordable or not.
Getting rid of the water cooler and coffee pot is silly on the one hand because of the limited amount of money saved, but maybe will impress upon others how serious the situation is.
None of us know your situation so it is hard to give you any serious advice about cost cutting. Having said that, I would start by looking at your largest expenses first. Cheaper TP probably will not solve anything.
Getting rid of your part of the bennies for 3 or 4 people might.
Cutting everyone's pay 2% might.
I would suggest maybe cutting back on time off, but maybe rolling all the various paid time off into a single benefit. So instead of 5 days sick time, 8 days of holidays and some vacation time maybe offer a total of 10 days of paid time off a year.
IMO, you are better off with fewer employees that are actually working FT. Your loyalty to them is admirable as long as it remains affordable, but you may end up killing off the business thru your loyalty.