Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Talon for Twitter - Elegantly designed, ad-free Twitter experience for Android
pretix - pretix helps you to sell tickets for your event in an easy way. It supports multi-lingual events and provides a wide range of features
YoruFukurou - YoruFukurou (NightOwl) is a Twitter client for Mac OS X, designed for Twitter addicts.
Ticket Tribe - Sell tickets online with no fees per ticket
Janetter - Janetter is a Twitter client application. Faster, smarter, and more powerful.