50th birthday shirts for women 1971 - vintage original parts - retro birthday - 001-dk. heather-md shirtinvaders retro birthday - vintage 1971 original parts - this is not just another last minute, random birthday gift idea designed for single use... shirtinvaders branded t-shirts are created to be worn. a 50th birthday gift idea that will be loved, appreciated and actually used! a great option for a unique birthday gift, father’s day gift, mother's day gift, christmas gift or just an unexpected surprise... and with every year offered, this shirt would make a great gift for anyone. our t-shirts work for any and all occasions. we have a large selection of dated or year specific designs and gifts to choose from with a variety of color options and sizes to fit everyone. shirtinvaders brand designs are created with our unique vision, style, and attitude. we want to impress everyone with our quality, our creativity, our speed and our motivation... from our customers and competitors to our own designers and printers. we’re not just a t-shirt shop, we are a unique brand with a hunger for success, a motivation to impress and a drive to set new industry standards.