Custom-UIToolbar is a project mainly written in Objective-C, it's free.
Fully customizable UIToolbar with any background image and colored buttons
This is fully customizable analog of UIToolbar where you can use any toolbar background, and icons of any color.
Copy CustomToolbar.h and CustomToolbar.m files to your project
Use the following functions:
(id)initWithFrame:(CGRect)frame AndBackgroundColor:(UIColor*)bgColor;
creates toolbar of given size with custom background color
(void)AddToolbarItemWithImage: (UIImage*)image Target:(id)target Selector:(SEL)selector;
adds button to toolbar
(void)RemoveButtonAtIndex:(int)index;
removes button
(void)ButtonAtIndex:(int)index SetEnabled:(BOOL)enabled;
enables/disables toolbar button