Preheat oven to 375º.
On a lightly floured surface, unroll crescent sheets and tear where perforated.
Cut each triangle into 3 smaller triangles.
Place 1 cocktail wiener on thick side of each triangle, then gently roll to thinner side.
Transfer to a medium baking sheet.
Brush with butter and sprinkle with salt.
Bake pigs in a blanket until golden, 12 to 15 minutes.
