Hello Jon The Nerd,
Thank you for contacting us.
With the Q3-2009 we released five common buttons: RadButton; RadRadioButton; RadToggleButton, RadDropDownButton and RadSplitButton. Actually there are another five buttons: they are modified version of mentioned buttons to meet the RibbonBar requirements. You can get a quick preview of these buttons in following links:
In case you are not looking for such general (and business oriented) buttons, but some funny stuff - you can always edit the buttons' templates - unfortunately we do not have such stylized or cartoon looked buttons.
the Telerik team