oh, 'death glares' are very simple once you get the hang of them. Just stare at them as though you'd wish very much for them to jump off a bridge.
A club may work, or it may attract more unwanted attention.
Personally, I really just hid myself at home or in my office before the maternity leave. If you need to get out, try to find someone to go with you, people are less likely to grab at you.