Small guitars?

• Waikiki strings, for short
• Strummed instruments, for short
• Luau guitars, for short
• Guitars' smaller kin
• Instruments for Israel Kamakawiwo'ole
• They're played in Hawaii and here by two card players
• Four-stringed island instruments
• They're strummed on beaches
• Maui music makers, for short

Wiktionary Word definitions in Wiktionary
n. (plural of uke English)