Sales of bonds backed by everything from timeshare rentals toshipping containers to entertainment royalties are poised to risethis year as investors seek to boost returns with interest rates atabout record lows.

So-called esoteric asset-backed securities issuance may soar12.9 percent to $35 billion, compared with debt linked to moretraditional collateral such as auto and credit-card loans, whichwill grow 8.75 percent to $87 billion, according to a forecast fromCredit Suisse Group AG.

Barclays Capital, Citigroup Inc. and Wells Fargo & Co. aredirecting investors toward the debt with Federal Reserve ChairmanBen S. Bernanke pledging to keep benchmark interest rates, held atzero to 0.25 percent since 2008, “exceptionally low” throughmid-2013. Investors willing to hold BBB rated bonds backed byfranchise royalty fees of the Sonic Corp. fast- food chain mayreceive as much as 2 percentage points more annually than similarlyrated securities tied to auto loans, according to BarclaysCapital's Cory Wishengrad in New York.