Start out with a new document in photoshop. Type out the wording you would like to use for your title using a font of your choice. In my example below I used LetterOMatic! font in a size 150. I would suggest using a large font size to start out, you can always adjust your letters to a smaller size later.
Next, open the patterned paper you would like to use for your alpha. Copy and paste the patterned paper on to a new layer on top of the title you just created. Right click on the patterned paper layer. You should see the menu in my picture below. Click on 'create clipping mask'.
Youshould then have your patterned paper in the shape of your title. Merge all of your layers together. You can use the alpha as is or I like to add a white stroke to all of my letters which makes them look like stickers. To add astroke go to your 'edit' menu and click stroke. For this example I chose a white stroke, width: 15 px, outside.
Arrange the rest of your title on your layout and add shadows. Voilà, quick and easy way to make an alpha!
Layout made using Deena Rutter's Scoot Collection.