I can confirm that Grillz lenses don't fit well in the Dye lens case (which is a shame, as it's an excellent case, works perfectly with both Dye & Proto lenses though) and I would expect the Event lenses, being fairly flat, that the Empire case won't work too well. I have asked and was told that Procaps were "looking in to" making a lens case!
I found the best thing to carry them in was either the packaging some Eclipse gloves came in, or a resealable (Ziploc) bag, wrap them in cheap microfibre cloths from Tescos and pop them in the bag.