This form, invented by Jericho Brown, combines elements of the Sonnet and the Ghazal.
You can find an example here.
POETRY . . . my journey along a metaphorical, metaphysical and meandering river
I have just encountered the Minison Project here, thanks to Trish Hopkinson's NO FEE Submission call page.
Do take a look at this brief form, described as 'Shakespeare's Sonnet Reimagined'.