I have Honka Hootas on several of my 3-speeds. The bulbs have perished. Simply buying new horns would not be very expensive, but it seems a waste when it would be even cheaper to replace the bulbs, were they available.
It's not a light bulb, it's the rubber/plastic horn bulb. Edwardw, thanks, I was afraid that might be the case.

Possibly related posts: (automatically generated)

 

logo Are spare parts available for Honka Hoota bicycle horns?
New Bicycle Bike Cycling 7LED Red Tail Brake Light break light lamp Horn 8 Sound
New Bicycle Bike Cycling 7LED Red Tail Brake Light break light lamp Horn 8 Sound
Paypal   US $.01 		Handlebar Switch Wipac Ducon Horn Dip Chrome Classic Bike use
Handlebar Switch Wipac Ducon Horn Dip Chrome Classic Bike use
Paypal   US $24.50 		New Bike Bell sounds helmet Bicycle Alarm Horns Black
New Bike Bell sounds helmet Bicycle Alarm Horns Black
Paypal   US $.99
NOS Anniversary Roadmaster Luxurry Liner Bicycle Horn Tank
NOS Anniversary Roadmaster Luxurry Liner Bicycle Horn Tank
Paypal   US $195.00 		Repainted 26 Schwinn Cantilever Autocycle Bicycle Blue Frame Tank Horn Badge
Repainted 26 Schwinn Cantilever Autocycle Bicycle Blue Frame Tank Horn Badge
Paypal   US $495.00 		Delta Style Bicycle Tank Horn Replacement Unit Fit Schwinn Shelby
Delta Style Bicycle Tank Horn Replacement Unit Fit Schwinn Shelby
Paypal   US $20.00