You can accommodate longer items such as ferns and long leaves by clipping two 5” presses together.  Lay the two presses adjacent to each other, add your frond or leaf and assemble the presses by adding clips on each end and on the sides where the presses meet.  You will need to turn off the turntable in your microwave.  Ferns press quite quickly, so test times with an imperfect specimen. Fern blades will especially come in handy when you find you did not press enough leaves to complete a project.