The hair dryer trick is no joke. Heat the rubber around the emblem and get it nice and pliable. The old horn button comes out like magic and the new one can be reinstalled before it cools off. 
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Check Out MikesStuff4Sale.com to view my used parts! 
------------------------------------------------ 1987 Buick Grand National
Budget 4.1, 204/214 cam, TA-49 Turbo, Stockish Heads, V4, MSD50's, TH DP, JayJackson 62mm TB, Translator plus Extender powered. 3680# with pilot
------------------------------------------------ 1993 Mazda RX-7 4.1 Buick Powered
11.20 @ 128mph (2.4 60')!  |