What shall I expect for our Octennial?

Traditional Wedding Anniversary Gifts
1st Paper
2nd Cotton
3rd Leather
4th Linen
5th Wood
6th Iron
7th Wool
8th Bronze
9th Pottery
10th Tin
11th Steel
12th Silk
13th Lace
14th Ivory
15th Crystal

20th China
25th Silver
30th Pearl
35th Coral
40th Ruby
45th Sapphire
50th Gold
55th Emerald
60th Diamond
75th Alabaster
80th Oak
compiled by the Chicago Public Library and Answers.com

The fourteenth and thirty-fifth I personally would forego and urge others to, but otherwise I find them utterly charming.

numerical (Latin-derived) names
Triennial - 3 years
Quadrennial - 4 years
Quinquennial - 5 years
Sexennial - 6 years
Septennial - 7 years
Octennial - 8 years
Novennial - 9 years
Decennial - 10 years
Vigennial - 20 years
Semicentennial - 50 years
Demisesquicentennial - 75 years
Centennial - 100 years
Quasquicentennial - 125 years
Sesquicentennial - 150 years
Terquasquicentennial - 175 years
Bicentennial - 200 years
Tercentennial or tricentennial - 300 years
Quadricentennial - 400 years
Quincentennial - 500 years
Sexacentennial - 600 years
Septuacentennial - 700 years
Octocentennial - 800 years
Nonacentennial - 900 years
Millennial - 1000 years
Bimillennial - 2000 years

Our local paper has couples who're celebrating their Demisesquicentennial anniversaries every now and then.