Nothing like a saddle melted across a whole stick of butter. If that ain't summertime I don't know what is.
Since we're talking about eatin', how about this one plain and simple thing that is all about summertime? Picnic table.
I know for some these are used year 'round, but we all get our butts out on one when it's nice out
Then there's lawn, patio, porch furniture, park benches, a rock or log. All outdoor furniture. It's for summertime!