it really depends on what type of pageant you would like to have. the glitz, acheivement, natural etc... I would say on a local pageant, to give out medallions, certificates, maybe the small sash's that say queen, king, princess on them. For a state pageant maybe a crown, sash, trophy, certificate, age appropriate gifts. for nationals add maybe a medallion, cash prizes, a bigger crown, a different sash, a sash pin, maybe a crown box. etc.. it all depends on what type of pageant you want, and how you want to attract people. hope it all works out for you if you are planning a pageant.
