(1) Put them in prominant positions around the place on slowly turning podiums.
(2) Now set spotlights around and above each bike to compliment and highlight their individuality and sexiness(i'm suggesting three with each and consider colour filters for a couple of them for porno like affect)
(3) Play music to suit mood.Turn on spinning mirror ball. Sit on divan. Look at bikes.
+1 - I would also think of a way you could get one into the bedroom?
"A Tiger doesn't lose sleep over the opinion of sheep"