Geeky (but elegant) table decor mock-up

Hi everyone! So we're having a medieval wedding in a Gorgeous setting- stone walls, fountains, climbing roses and wisteria at an Italian Garden (I'm completely holding my breath that the weather is nice!). We really want this to be elegant, but fun, and represent US. We're huge Magic (card game) playing, D & D loving, comicon-going, cosplay-wearing geeks. So we wanted a little of that out there to share at our reception. I found small, gold rimmed terrariums that we're having our favorite Funko pops displayed in (Lord of the Rings, Serenity, The Princess Bride, Doctor Who, & Harry Potter characters), on miss or sand. Behind those, on either side will be one 7" & one 10" glass cylinder base with assorted D & D dice on the bottom, then filled with water and a white floating candles in them. Down the middle of the 8' farm tables will be a gathered (scrunched up & laid length-wise) 10' white chiffon runner with green willow garland with white roses tucked in here & there. Please don't mind the table- this is a rough mock-up on my kitchen table with a full-sized tablecloth instead of the real runner, and I don't have the floating candles in, yet. The rose in the terrarium is a boring option, rather than going with the pops, but I'm still playing around with it. Comments, suggestions? Please be kind, but I could use some input. Thank you!