DD has a snuffly nose

We've tried... Vapourizor, Eucky Bear Rub (on chest and on bib), Saline/Aspirator (can't get anything out with the aspirator )...

is there anything else we can try? We got to a prem playgroup on Thursdays and can't go if DD is at all snuffly, and this week is CPR and Chocking and we have been waiting 6 months for this session to come up and DH is also taking the afternoon off so he can come

Any more hints would be fabulous!!!