Train Color Words Book
I made this quick activity for one of my students, so I thought I'd share it. You can have the student read the pages to know which colors to make the trains, so it's kind of like a reading assessment too.
You can download it here: http://www.positivelyautism.com/downloads/TrainColorWordsBook.pdf
I also made a train-themed color word matching activity that you can download here: http://www.positivelyautism.com/downloads/readingcolorwordtrains.pdf