Anniversary gift, help

Hi there, It is my boyfriend and I’s third anniversary coming up on the third of April. I am wanting to get us matching armbands (he is the biggest Viking lover and knows all of the history behind everything) that have the Nordic history that has some type of correlation to our relationship (eternal, love, strength etc..) I’d really appreciate the help because like I said he knows the history behind everything and I don’t want to make myself look stupid lol.. I cannot thank you guys enough