Abc Cookie Cutters Cookie Cutters..?

Cookie Cutters..? - abc cookie cutters

30. Anniversary of my husband is next week and I make breakfast in bed. I thought of using cookie cutters, cut the hearts and 3 and 0 of pancakes. I have the knife ABC Wilkins. Can this plastic knife in the oven? Strawberries from plastic are sharp enough to cut out the shapes on pancakes?