Fast Company had an article about retro computer Christmas art, and featured a few pics made on a TI-99/4A.
http://www.fastcompany.com/3054395/the-oddball-nostalgic-christmas-tech-art-of-the-1980s-and-1990s
Retro Computer Christmas Art
The TI-99/4A Home Computer Page
99er Blog
Fast Company had an article about retro computer Christmas art, and featured a few pics made on a TI-99/4A.
http://www.fastcompany.com/3054395/the-oddball-nostalgic-christmas-tech-art-of-the-1980s-and-1990s