Ok, first drink without a clever name. It's basically a Hemingway Daiquiri. 
 
1.75 oz Wrey & Nephew overproof rum 
.75 oz fresh lime juice 
.25 oz maraschino liqueur 
.25 oz grapefruit juice 
.25 oz Campari 
1 sugar cube 
 
In an old fashioned glass, muddle the cube with the lime juice. Then transfer to a shaker. Some sugar will remain. Add ingredients, except for Campari. Shake! Float Campari in drink served with crushed ice. 
 
I think this one is nice. The W&N is subdued here, but has it's original character. The Campari really adds something. Maybe remove the grapefruit juice?