Glad you're liking the tool. But oh no! Ya bent your blades? It can happen. The blades are made strong, but being a "fine detail blade" it needs to be thin an narrow enough for the intricate work. Gotta use caution on foam when inserting the blade and when taking any sharp curves and turns.
To your question... replacement blades I can do. They come in little baggies of 6 blades, just like in the kit. That's 3 small blades, 3 large blades. On their own, I can sell them for $5 (plus shipping). If you're interested, just fill out the contact form
with your request and I will send you an invoice through PayPal that will have the appropriate payment buttons.