Sales of bonds backed by everything from timeshare rentals to shipping containers to entertainment royalties are poised to rise this year as investors seek to boost returns with interest rates at about record lows.

So-called esoteric asset-backed securities issuance may soar 12.9 percent to $35 billion, compared with debt linked to more traditional collateral such as auto and credit-card loans, which will grow 8.75 percent to $87 billion, according to a forecast from Credit Suisse Group AG.

Barclays Capital, Citigroup Inc. and Wells Fargo & Co. are directing investors toward the debt with Federal Reserve Chairman Ben S. Bernanke pledging to keep benchmark interest rates, held at zero to 0.25 percent since 2008, “exceptionally low” through mid-2013. Investors willing to hold BBB rated bonds backed by franchise royalty fees of the Sonic Corp. fast- food chain may receive as much as 2 percentage points more annually than similarly rated securities tied to auto loans, according to Barclays Capital's Cory Wishengrad in New York.