Ok, I've been messing around with the images and ... I've come to find that wiki's small event images work very well with this plugin. They have (what appears to be a webbed but is actually) a transparent back ground. The Lunar Tokens "dropping" on the Homepage give a hint as to how small we can make those images. The tokens were brought down to 15 X 15 on Office Picture Manager, but I can make them even smaller. (I just wasn't sure they'd be recognizable.)
Also, by posting them here in this thread first (after resizing), I've created a storage source with a web page to host them from... Sayonara Photo Bucket...we can live on without you!
So, in future we can use actual event drops for the Homepage imagery.