Jack & Jill:
Go ahead and bring the boys! But make sure to plan events accordingly. Forego the girly cucumber sandwiches, and go unisex with heartier food. Consider a Bridal BBQ, a Pre-wedding Tailgater (have Bloody “Marries,” sport-themed decorations, and gifts the couples would use), or a Wedding Homerun (with all home-themed gifts, of course).
Tea Party:
Start the party at teatime and serve fancy girly foods. For decorations, put flowers in teacups; for place cards, use tea bags with the name of each person attached.
24-Hour Shower:
Guests are assigned a time of day and bring a gift related to that time of day (for example, ‘10 p.m.’ guests bring bedding and ‘8 a.m.’ guests bring a coffeemaker). This idea could also be adapted to each month. Beach chairs for August, a shower head for April showers, Christmas ornaments and decorations for December, etc.