Lots of possibilities with the cabasa!
Experiment with these patterns:
Percussion For Worship (TM) provides information for percussionists, worship leaders, producers, teachers, and anyone desiring to learn about the use of this family of instruments in both contemporary and traditional Christian worship.
When Robert (a Peruvian) asked that question, I knew that he was referring to the cajon. Simple, portable, and possessing a variety of timbres, the cajon is a great choice for the "no drumset" situation. With bass tones produced in the center of the main playing surface (front panel) and crisp highs at the upper corners, you can coax a pretty meaty groove out of the box.
Much of the time when I am playing percussion in a church service, there is also a drumset player. My closest interaction within the rhythm section is with the drummer. The drumset skills developed in high school and college (I still practice drumset and play a few gigs on it these days!) serve me well when I am in the percussionist role. When I am playing percussion, I am often thinking about what the drummer is playing and trying to weave my part around his playing in a complimentary fashion. I can often predict where the drummer will lay down a fill, phrase some horn hits, or play a set up figure. This helps me avoid playing “on top” of a fill or cluttering the phrasing.