I have lent a Richmond Holographic Studios hologram of Boy George to the V&A Museum in London for their new exhibition on Postmodernism. If that wasn't cool enough, they have made a T-shirt of it for their shop!
You can see some documentation of a small exhibition I had in my London gallery this Summer, including Pulse portraits, stereograms, digital holograms and lenticulars, on the hologram collection website. There is a link to a short YouTube video clip.