Clock Buddies is an easy and painless way to have pre-made pairings for all sorts of activities.
Clock Buddies walks you through creating homogenous and heterogeneous pairings in both ELA and Math. This can either be done by the teacher in advance or can be set up so students can create their own pairings through use of color-coded pages.
Students absolutely love being told to go to meet with their "___ o'clock appointment"!!
This also ensures that you are switching up pairings to keep them fresh!