Sax sextet, SAATTB includes seven of the Selections from "Carnival of the Animals" by Saint-Saens.
1. Royal March of the Lion
2. Hens and Roosters,
3. Tortoises,
4. The Elephant
5. Kangaroos,
6. Fosssils,
7. Finale.  
There is an alternate xylophone part for the  "Fossils" Should be a fun piece with all of these short works. Might use a narrative to introduce the animals.