It is possible to make fishing jigs without expensive moulds - read about one method for doing so here with lots of pictures.

How To Make Fishing Lures: Fishing Jig Making - Without Expensive

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How To Make Fishing Lures: Fishing Jig Making - Without Expensive

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Fishing Jig Making - Without Expensive Moulds?

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How To Make Fishing Lures: Fishing Jig Making - Without Expensive

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Fishing Jig Making - Without Expensive Moulds?

How To Make Fishing Lures: Fishing Jig Making - Without Expensive

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Fishing Jig Making - Without Expensive Moulds?

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How To Make Fishing Lures: Fishing Jig Making - Without Expensive