If you buy a plastic bucket, which is what I use for larger starters, just buy a lid for it as well. You have to make a couple holes, but the price is almost impossible to beat.
I have reused the 5L ice cream buckets. The lids are flexible enough to leave one section covered but not sealed completely.
This was the two starters for my hefe batches last summer. You can see that the lid edge facing the front is not quite sealed:
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Here are the two gallon buckets I use - got them at Walmart. you can see where I put grommets in the lids for airlocks:
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Good Luck
Cody
