Variable Products Help

Hey all,
I’m trying to create a variable product, with the following attributes

Colour: A | B (+£2)
Design: None | A1 (+£3) | B1 (+£3)
Material: A2 | B2 | C2
Finish: None | A3 | B3 (+£1)

The above is just an example, to create all my variables will take me over 50 (and the system can’t go more than 50).

Is there an easier way of doing it? So if the user selects ‘No’, the price stays the same. If the user selects anything else from Design it will add +£1.

I can’t seem to find any plugins that would do this.