The answer is, yes, she sells them, for one thousand dollars each.
(Actually, her answer is no, but I'm pretty sure if you offered her a grand, she'd make an exception.)
Just in case that's out of your budget, Mom was kind enough to share information about where you can find the pattern so that you can make your own (or beg/bribe a crafty friend to do it for you.) Go to Cotton Ginny's; it's the "Animal Blanket and Ball" pattern. The cost is $7.75 including U.S. postage. (There is also an adorable "Safari Blankets" pattern if you want to make more exotic animals.)
Note that my mom reduces the pattern to 75% of its original size (at a copy machine, before cutting it out.) I have the original-sized hippo for Chickie and the reduced-size bear for Zoodle, and I definitely like the smaller size better.