1 million microphones = 1 megaphone
1 million bicycles = 2 megacycles
2000 mockingbirds = 2 kilomocking 
10 cards = 1 decacards 
1/2 lavatory = 1 demijohn 
1 millonth of a fish- 1 microfiche
453.6 graham crackers = 1 pound cake
10 rations = 1 decoration
10 millipedes = 1 centipede
3-1/3 tridents = 1 decadent
10 monologues = 5 dialogues 
2 monograms = 1 diagram 
8 nickels = 2 paradigms