You can get them rarely by opening prawn balls, which you can obtain commonly while fishing. Can take you quite a while though to collect them all. Depending on your fishing lvl, a good way would be to go to the prifidinnas crystal fishing area with the urchins. Not click-intensive there.
I used up the ones I had a while ago, sorry. There are some threads advertising for pulls across the forum, seemingly in the Teamwork forum - just need to search it up. A number of them are after money however - be aware of trust trades. Best way would be to ask your clan or friends if they have any or as I previously mentioned, to collect them yourself.
See https://runescape.wiki/w/Golden_prawn_cracker and https://runescape.wiki/w/Prawn_balls for more info
28-Oct-2020 05:52:46