Go bowling at your neighbor's house. He's got lots of empty beer cans you can use. Remember to bring your balls!
Most bowling alleys have a pro that works there. Talk to the pro and see if they offer lessons.
The moment an umpire feels that the bowling of wides is deliberate he can summon the captain & warn him. If it still continues I feel the bowling team could be scratched off & penalised further ( However this point may need further confirmation)