How much variation was on weapons during 10th century Europe?

We often see on media knights or other european warriors holding basic blades and spears that look quite bland. Were they really like this? What relation did warriors have with their weapons? Did they see them as just work equipment or would they strive to customize them?

For example, would a knight drop his blade for an exotic blade of a fallen enemy, if it looked fancier? Would they decorate their sheaths or shields?