A few simple table decorations..

• use an old wooden tool box to hold utensils and napkins or even small vases of flowers.
• use a bowl for of clear glass balls to look like bubbles, add a set of fish salt and pepper shakers.
• use burlap for a tablecloth or you could use a fish net
• go to a resale shop and find fun salt and pepper shakers that remind you of dad.
• use wroght iron candle holders or even wooden ones (be careful with wood)
• add vases of cut grasses or lots of plants in a wooden bowl.
• fell a bowl with old tools or even old fishing lures. use any collection you may have even old coins or stones will work. You could even use seashells if you have them...
• use any old wooden handled utensils you have. and you could even use wooden chargers with your everyday dishes.

I hope this gives a few good ideas.. Just whatever you do make sure it is something you enjoy..If it isn't something you love it won't be worth the trouble..