My ceremony speaker is a Bose L1 Compact. My ceremony console is a $30 case from Harbor Freight Tools with a Yamaha mixer, 2 Sennheiser wireless mics and an iPad. Here's what it looked like when I was configuring it (the iPad is now wired to the mixer and the mixer has been set into the foam:
I can have this system packed up in 30 seconds, and can run it all off of a battery pack if I need to. It's perfect.