I made a blank photo overlay tonight, for 4 by 6 horizontal photos, for single date texts. It contains just the rounded border and cross lines, so you can add your own month and date text in whatever font you choose.
You can find the .png file here. Here's what it looks like:
Overlay is black, as usual. You can use the paint bucket tool in Photoshop/Photoshop Elements/Gimp to change it to the color of your choice.