You can only get one egg move on a Pokemon in generation 5, but I'll tell you how to get each move on 2 different drifblim.
For Destiny Bond:
Get a female Drifloon/blim and breed it with a male gastly/haunter/Gengar/yamask/Cofagrigus/wobbuffet/koffing/weezing that knows destiny bond. You have your Drifloon/blim with destiny bond.
For weather ball:
Breed a female Drifloon/blim with a male castform with weather ball. You have your Drifloon/blim with weather ball. Hope I helped!