can you share with me how to inflate this?
more developed, can you add surfaces inside the elephant to fix its shape when inflating?
Thank you and anyone who can help me out
Perhaps you could start by posting your model?
Please see the files here below. For personal Educational Purposes only.
Hope this is helpful. 
Elephant_Head_re.3dm (1.5 MB)
Elephant_Head_re.gh (80.2 KB)