Hello and thanks for you work!
I want to propose: at now, the helpful element exist - {joodb alphabox}.
It's may be possible to add new custom wildcard element to the some of next new versions - some thing like alphabox do, but with custom front page element name and custom database field selection to display?
E.g. select by "big", "small" and "medium" criteria, and possibility to hold multiple selections - example, select "small" at first element and "white" at second will display catalog page with only small whites elements.