Up for purchase are four vintage K.C. Drive Inn [Honolulu Hawai`i] keychains.  The one in the first pic has slightly different lettering in the center than the rest.  I believe their 40th anniversary was around 1969 -which fits with the flower power design.

They are unused in the original bags.  Bag of the top-right is split in the back; bag of the bottom-right has a couple holes, and the metal ring has some tarnish.

Thanks for looking and have a nice day...

POSTAL  SHPG USA: $5.98 w/ DELIVERY TRACKING.  Package ships next business day after purchase [no mailing Sundays / federal holidays]...