Maybe try keeping them in the little coop with nesting boxes for a few extra hours before they go out to all the toys. This could make them think about eggs rather than playing.
I did the same thing! They had so much fun and attention all the time they never even thought about eggs till they got a Little bored. My barred rock girls are not like that though. Just the silkies.
Are you giving them enough boring time in the coop? I know the silkies I had if I didn't keep them locked in till around noon those girls never gave me eggs. They would play all day!