mushroom shadowboxes, cheap!
Target apparently has been selling these dark brown wood shadowboxes with plastic mushrooms and leaves and acorns in them. Definitely a blast from the 70's in modern style. But not all of them sold, surprise!, so my local store had at least six of them in 3 styles on the clearance rack.
$2.50 to $3.75 for wood shadowboxes is really good, and last I looked IKEA didn't offer the rectangular ones so I bought one. Nevermind the contents!