This is NOT my original idea, I've looked up similiar tutorials via Pinterest, the blog I saw, and several other links. I am just sharing what worked best for me.
Here we go:
2x2 Tiles (Home Depot for $2.57 for a sheet of 36)
Modge Podge + Sponge Brush (Hopefully on hand?! I mixed equal parts of glue/water to make my own Modge Podge because I couldn't find any)
Magnets (I had these on hand, but Walmart sells them for CHEAP!)
(Because who doesn't LOVE instagram? I had to go through like 600 pictures!)
-Upload the saved picture to Picmonkey again as a single picture, and not the Collage setting and change the SIZING to 1657x2000 (make sure to uncheck 'save proportions') RESAVE. This will be the file that you use.
-Upload picture to your Costco account. If you don't have one, Walmart, Target, Walgreens etc will work fine. Costco prints an 8x10 for $1.49. When checking out with Costco make sure to UNCHECK COLOR CORRECT (you want all your pretty Instagram filters to show up right?!)
-If you choose, apply a thin layer of Modge Podge on top of the picture. Hubs and I agreed that our pictures were attached just fine, and that we didn't need to put the Modge Podge top layer on.
(I know that they say Modge Podge dries "clear" but there IS a clear film and brush strokes that remain - so I skipped this step and my pictures are attached just fine!)
Easy peasy! Such a cheap, easy, fun, personable gift!
(I should have done these for Christmas!)