Descriptive:
* Kuwentong kahoy - literally "wooden rattle"
* Mga kawayan na may butil - literally "bamboo with seeds"
* Kuwentong may tunog - literally "rattle with sound"
Borrowed:
* Marakas - the Spanish term, which is understood by many Filipinos
* Marakás - a more Tagalog-ized pronunciation of the Spanish word
Other:
* Pang-alog - this is a general term for any kind of rattle, not just maracas.
Ultimately, the best term to use would depend on the context and the audience.