LMAN has released an application called Simple HBLoader Creator, here is a quote from the ReadMe:
Simple HBLoader Creator for PSVita Written By LMAN © 2015
Just Drag’n’Drop EBOOT.PBP file to the first input field then
Add the path to the Homebrew F/EBOOT.PBP into the second field.
Press on the Save icon to Save the created EBOOT.PBP loader file.
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