Shake all ingredients in a cocktail shaker filled with ice and then fine strain into a chilled martini glass.
Use a small spoon or a piping bag to put a little jam into the cavity of the lychee. Then pop in a blueberry.
You can then use a toothpick to add some red food colouring around the white part of the eyeball. A few drops of grenadine to look like blood completes the effect. Carefully place across the glass using a cocktail stick; sip; and feel revived.