Food - A hearty menu with some kind of giant roast (leg of lamb?) and a rich cauliflower gratin. We're going to try to do a haggis too.
Decorations - Instead of a tablecloth, I bought a plaid pashmina to use as a runner. The big candelabras will have red candles. Our laguiole steak knives and carving set will be a great match. Rosemary and lavender for centerpieces. Auptimagh font for the invite.
Beverages - Scotch tastings from modern glass decanters. For the birthday boy, a special ram's head glass to drink from.
Activities -Plaid is mandatory for all the guests, which should make a festive start. My mom has delivered a couple old Scottish books, including an antique copy of Robert Burns poetry. We'll have toasts and readings.
Any other ideas to fit the theme?