This looks like a Treasure Craft item or similar. Made to appear like it is a slice of wood. Tree rings on the back.
Distinguishing Characteristics
Only have one shaker.
Collector Gallery
Tiki Mug Design
Multicolor Woodgrain Aloha Hawaii Salt & Pepper Set
in 2 collections
This brown S&P set with multicolor detailing features a palm tree, pineapple, Diamondhead, and reads "Aloha Hawaii" at top. Part of a set, including a hula girl mug, handled coffee mug, ashtray, and other pieces.