Without the constant fertilization from fish waste or high light levels, I've found most plants I've put in my planted vases grow slowly enough that pruning isn't an issue. Without water flow, however, you do have to make sure nothing too fine leaved is used--gunk tends to build up and cause problems on them.
Current plant list in my mini shrimp vessels (ghost or cherries--ranging from 3g down to a 4.5" diameter planted wine glass with 3 cherries)
xmas moss, java moss
frog bit, duckweed, guppy grass, hornwort
crypts: several varieties
cardamine lyrata (my goto--does beautifully for me)
hygro. "bold" and "sunset"
baby tears/ dwarf baby tears