I have a idea that will revolutionize digging.

Yes,special shovels.

Basically Special Shovels are shovels that are linked to a specific shell.

What I mean is that ...Umm example.Scallop Shovel:Gives you a 30% Chance Of Getting Scallop While Using it..and it has the same durability as regular shovel and is 100$.

Higher the shell price...the more the special shovel price is for that shell.

Also all the special shovels give a 30% bonus for finding that shell while digging with that shovel.

Okay also,yeah while using that shovel you can still get the other shells but a lower chance for them.