Let's start with these very pretty versions from Tuesday Morning:
Tuesday Morning's versions range in price from $24.99 to $39.99, but If you have experience with TM, you know it's hit or miss and when the featured item is gone, it's gone. They won't be restocking the item.
Next up is Restoration Hardware, featuring the vintage linen pillow covers (inserts sold separately) ranging in price from $28 to $32. I can tell you from experience, they're super soft.
Pottery Barn gets in on the action with a vintage grain sack version, prices ranging from $89 to $99 with inserts sold separately.
And if you're just positively flush with cash (you lucky, lucky girl), MySparrow on Etsy is offering up a pair of these for a mere $450 (pretty sure I have furniture that didn't cost that much, but hey that's just me ;-)).