my little brothers crush is sick..

Andrea
So I have a 10 yr old little brother, and he's been crushing on this girl in his class for a bit now. She was the new girl this year and he's always talking about her and it's so cute!
Well the little girl is having a problem with her foot/ or feet I'm not sure of the whole story but he was telling me that she had to use a wheelchair today and he felt bad for her.. I suggested he get her a get well soon card or something and he loves the idea.. 
Any ideas on what we can do for her ?? Please and thank you ! 
Update- 
He made her a card and got her a balloon and some candy! She was so shocked, it was too cute !