Michele: Again, thanks for more interesting and valuable information!! Those methods of transporting for show are so creative!
Re: the vases for shows ... I belonged to a little African Violet club here in town a few years ago and I remember the president saying something about any and all Gesneriad plants for the show had to be in white pots ... no other color was accepted which does make sense; keeps everything much more uniform and one can concentrate on the beautiful plants/blooms rather than an array of colorful pots/vases.