Perhaps you could try pressing some flowers too? You don't really need a press like the one the bears used. You can achieve similar results by putting your flowers between pieces of blotting paper and corrugated card and then slipping them between the pages of a big, heavy book, and then putting more heavy books on top of that.
Or you can put single flowers between paper and tuck them under the carpet where people often walk - their weight will help to press the flowers. Then check the results in a few weeks' time and you can compare them with the ones the bears have done! Perhaps use them to make a pretty picture for someone's birthday card. Happy pressing!!