Homemade furikake

I quickly became obsessed with furikake like most bc of how good it goes with rice. But it’s so expensive where I am at (England), costing £7 per 60g which I go through quite quickly. How can I make my own?

Attached is the photo of the ingredients of the one I’m using currently, could I just mix the sesame seeds, powered egg yolk, dried nori and dried fish flakes (assuming I can find these separately easily and cheaply) and achieve a similar result?