I was thinking that you could sort the connections, text to self, and text to text connections. Then ask students to choose either and make a connection with their current reading selection. I'm not sure of the grade level you have so, you can adapt this for grade levels. With young students you could give a prompt, such as:
Text to text:
My book entitled (blank) reminds me about book entitled (blank) because...
Text to self:
My book connects with my life because...
When they are finished they could publish it on sentence strips or nice paper. After making a Connections title you could define text to self and text to text and sort the student work accordingly.
Mary is quite right. Any book will work.