EZ-Cup Center Disc

I lost the center disk to my EZ-Cup pod so I made this up using another one I had on hand. It's almost identical to the original, but made more 3D printing friendly. The spring clips into place and holds the detail very well.

I hope this will help someone in the same predicament as I was in. Please comment and post a make if you find it useful. Thank you.

EDIT:
Version 02 has a solid center. The first design warped and cupped in that area. So I changed it to solid and printed it with 100% infill.