Using disparate funds for investing

[Jose Guevarra]

Hi,  

I've got several disparate sources of funds that I'd like to grow by partnering/lending with other investors.   

Ballpark figures:

$50K HELOC @ 4%
$900 @ 5%
$15K Self Directed IRA

I can use the HELOC and SDIRA to lend out, purchase, or leverage on a deal. However, I'm curious if there are any instances where I could use $900 to lend out and get a good return?