The ITER DMS Support Laboratory was established in 2020 in the HUN-REN Centre for Energy Research, Budapest, Hungary Since than formation, launch and shatter of H, D, Ne and mixture pellets has been demonstrated. An optical pellet diagnostic and a launch valve concept has also been developed and successfully applied in the Support Laboratory, at present prototypes of these components are being developed. The remaining key problem is to find a solution to prevent a significant amount of propellant gas from overtaking the pellet, and at the same time ensure that the pellet reliably covers its 5 meter long designated flight path within a few mm and with only a few degree rotation angle. The developed pellet formation recipes contain an initial phase, when a loose "cryogenic snow" layer forms in the barrel which enables easy launch of the pellet. The conditions for creating this layer are qualitatively understood, but for a better quantitative understanding a separate cryogenic system has been developed and first results obtained. This phenomenon may have application in astrophysics s well for understanding the optical properties of remote objects in the solar system. An additional line of development is to study the possibility of forming pellets from parahydrogen. This is expected to considerably reduce the formation time, therefore experiments have been conducted.