Id just Google it :) monkeys are pretty popular so you should be able to find a lot of stuff online and probably at party stores as well
Idk about monkeys, but I found really cute stuff at the dollar store for mine lol.
(Etsy) get the appreciate I order everything on there for my bby shower owl theme but I did see monkeys on there too!!
Partycity.com!! I got my baby shower stuff from there with my daughter and also two of her birthdays. Love that store!! =)
Mrs.Gomez8806 Etsy is what the app is called???? Ive gotten ideas from pintrest they have tons of idea for diff. Themes. An thank u ladies.