Gold star wedding shoes from BHLDN. Want!
One of my favourites: constellation dress by Carolina Herrera, Pre-Fall 2013
DIY Cut and Fold Lucky Paper Stars Tutorial and Template from minieco here.
Not LED Wedding Decor this time, but would match nicely: love the shiny metallic stars on this veil!
Lucky paper stars (origami).
20 Nerdy Wedding Rings - From Fingerprint Wedding Bands to Relationship Status Rings (CLUSTER)
Constellation Cuff Physics Jewelry Science by DarkMatterJewelry, $49.00
Vintage Sheet Music Party Picks, Upcycled Origami Stars, set of 12. Would be cute with any paper that fit your theme, although labor-intensive. You could make them while watching tv, though.