I have a few boxes prawn crackers (krupuk / keropok) gotten from Indonesia. The ones shown here are the smaller version, about 3 cm diameter after being fried. The big ones are as wide as 6cm in diameter or wider sometimes.
Thought to share! These ones, you could actually taste the real shrimp/prawn flavour. It’s dense and crunchy in texture. Keropok could be also made of fish, but usually in prawns/shrimps.