Nifty!
And... under construction?

What'cha doin? (Yeah, I love to see what people are doing to their eggs, particularly when the phrase "under construction" is used

- but only if you want to show, of course.)
Re: the sticky Velcro. I have had basically no luck with the stuff that comes "pre-stickied." Even with proper prep it just peeled back off. In the end I had better luck with the "plain" Velcro and contact cement (or sewing, if on cloth).
Granted this was before they came out with some of the "marine" Velcro, which might have better "stick." But with a separate adhesive you know just what you're getting.
Magnets are an interesting idea though.
Raya