You would probably have to replace the blade with any trimmer - or I would think (maybe not the guillotine) but my trimmer is 5 years old. Its a Fiskar's rotary. I've changed the blade 4 or 5 times. The old just pops out and the new pops in the little housing thing.
THe first time I took it to the scrapbook store (they sell them there) and they changed it for me. My husband has also changed it for me but its so simple I do it myself now.