Full Souslin trees at small cardinals

A $\kappa$-tree is said to be full if each of its limit levels omits no more than one potential branch. Kunen asked whether a full $\kappa$-Souslin tree may consistently exist. Shelah gave an affirmative answer of height a strong limit Mahlo cardinal. Here, it is shown that these trees may consistently exist at small cardinals. Indeed, there can be ${\mathrm{\aleph }}_3$ many full ${\mathrm{\aleph }}_2$-trees such that the product of any countably many of them is an ${\mathrm{\aleph }}_2$-Souslin tree.