OH, I love THIS!!!!! So creative, its fabulous!! Thank you for your entry!!
I've never tried it, however this website has several techniques on blowing out eggs... https://www.google.com/amp/s/www.saudereggs.com/blog/how-to-blow-out-an-egg/amp/
I use a thumb tack first. Then I can make one of the tiny holes bigger, bit by bit till it gets big enough (on the less visable side) to fit a tooth pick or a skewer in there. The trick is to stab the skewer in there gently but enough to break up the yolk. Broken yolk blows out MUCH easier than whole yolk.
You have until the end of October to get your entries in, hopefully they will start laying soon!! Oh and yes, you can purchase eggs at the store if need be!This contest is so fun! I want to join in, but does it have to be my eggs? My pullets aren’t laying yet... 5 months old today but I’m still waiting